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Finding the Fourth Proportional to 57,980,716.80, 86,981,572.80 and 29,154,307.20

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Solution

The fourth proportional to 57,980,716.80, 86,981,572.80 and 29,154,307.20 is: 43,736,739.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,980,716.80 : 86,981,572.80 = 29,154,307.20 : x
  2. Step 2: Convert to fraction form
    57,980,716.80/86,981,572.80 = 29,154,307.20/x
  3. Step 3: Cross multiply
    57,980,716.80x = 86,981,572.80 × 29,154,307.20
  4. Step 4: Simplify right side
    57,980,716.80x = 2,535,887,494,150,364
  5. Step 5: Solve for x
    x = 2,535,887,494,150,364/57,980,716.80
  6. Step 6: Final answer
    x = 43,736,739.28

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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.