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Finding the Fourth Proportional to 104,366,978.80, 156,550,468.20 and 98,414,839.60

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Solution

The fourth proportional to 104,366,978.80, 156,550,468.20 and 98,414,839.60 is: 147,622,259.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,366,978.80 : 156,550,468.20 = 98,414,839.60 : x
  2. Step 2: Convert to fraction form
    104,366,978.80/156,550,468.20 = 98,414,839.60/x
  3. Step 3: Cross multiply
    104,366,978.80x = 156,550,468.20 × 98,414,839.60
  4. Step 4: Simplify right side
    104,366,978.80x = 15,406,889,217,207,898
  5. Step 5: Solve for x
    x = 15,406,889,217,207,898/104,366,978.80
  6. Step 6: Final answer
    x = 147,622,259.40

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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.