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Finding the Fourth Proportional to 99,662,711.70, 149,494,067.55 and 45,914,999.70

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Solution

The fourth proportional to 99,662,711.70, 149,494,067.55 and 45,914,999.70 is: 68,872,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,662,711.70 : 149,494,067.55 = 45,914,999.70 : x
  2. Step 2: Convert to fraction form
    99,662,711.70/149,494,067.55 = 45,914,999.70/x
  3. Step 3: Cross multiply
    99,662,711.70x = 149,494,067.55 × 45,914,999.70
  4. Step 4: Simplify right side
    99,662,711.70x = 6,864,020,066,710,031
  5. Step 5: Solve for x
    x = 6,864,020,066,710,031/99,662,711.70
  6. Step 6: Final answer
    x = 68,872,499.55

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.