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Finding the Fourth Proportional to 67,057,010.30, 100,505,799.30 and 60,201,421.40

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Solution

The fourth proportional to 67,057,010.30, 100,505,799.30 and 60,201,421.40 is: 90,230,565.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,057,010.30 : 100,505,799.30 = 60,201,421.40 : x
  2. Step 2: Convert to fraction form
    67,057,010.30/100,505,799.30 = 60,201,421.40/x
  3. Step 3: Cross multiply
    67,057,010.30x = 100,505,799.30 × 60,201,421.40
  4. Step 4: Simplify right side
    67,057,010.30x = 6,050,591,976,803,125
  5. Step 5: Solve for x
    x = 6,050,591,976,803,125/67,057,010.30
  6. Step 6: Final answer
    x = 90,230,565.75

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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.