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Finding the Fourth Proportional to 39,366,978.40, 59,050,467.60 and 33,981,709.60

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Solution

The fourth proportional to 39,366,978.40, 59,050,467.60 and 33,981,709.60 is: 50,972,564.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,366,978.40 : 59,050,467.60 = 33,981,709.60 : x
  2. Step 2: Convert to fraction form
    39,366,978.40/59,050,467.60 = 33,981,709.60/x
  3. Step 3: Cross multiply
    39,366,978.40x = 59,050,467.60 × 33,981,709.60
  4. Step 4: Simplify right side
    39,366,978.40x = 2,006,635,841,727,409
  5. Step 5: Solve for x
    x = 2,006,635,841,727,409/39,366,978.40
  6. Step 6: Final answer
    x = 50,972,564.40

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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.