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Finding the Fourth Proportional to 67,065,004.80, 100,597,507.20 and 60,687,712.80

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Solution

The fourth proportional to 67,065,004.80, 100,597,507.20 and 60,687,712.80 is: 91,031,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,065,004.80 : 100,597,507.20 = 60,687,712.80 : x
  2. Step 2: Convert to fraction form
    67,065,004.80/100,597,507.20 = 60,687,712.80/x
  3. Step 3: Cross multiply
    67,065,004.80x = 100,597,507.20 × 60,687,712.80
  4. Step 4: Simplify right side
    67,065,004.80x = 6,105,032,625,349,532
  5. Step 5: Solve for x
    x = 6,105,032,625,349,532/67,065,004.80
  6. Step 6: Final answer
    x = 91,031,569.20

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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.