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Finding the Fourth Proportional to 65,609,939.60, 98,414,909.40 and 65,609,939.60

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Solution

The fourth proportional to 65,609,939.60, 98,414,909.40 and 65,609,939.60 is: 98,414,909.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,609,939.60 : 98,414,909.40 = 65,609,939.60 : x
  2. Step 2: Convert to fraction form
    65,609,939.60/98,414,909.40 = 65,609,939.60/x
  3. Step 3: Cross multiply
    65,609,939.60x = 98,414,909.40 × 65,609,939.60
  4. Step 4: Simplify right side
    65,609,939.60x = 6,456,996,261,473,473
  5. Step 5: Solve for x
    x = 6,456,996,261,473,473/65,609,939.60
  6. Step 6: Final answer
    x = 98,414,909.40

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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.