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Finding the Fourth Proportional to 45,999.45, 68,901.98 and 45,999.45

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Solution

The fourth proportional to 45,999.45, 68,901.98 and 45,999.45 is: 68,901.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,999.45 : 68,901.98 = 45,999.45 : x
  2. Step 2: Convert to fraction form
    45,999.45/68,901.98 = 45,999.45/x
  3. Step 3: Cross multiply
    45,999.45x = 68,901.98 × 45,999.45
  4. Step 4: Simplify right side
    45,999.45x = 3,169,452,953.91
  5. Step 5: Solve for x
    x = 3,169,452,953.91/45,999.45
  6. Step 6: Final answer
    x = 68,901.98

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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.