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Finding the Fourth Proportional to 453,794.69, 680,695.93 and 129,581.96

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Solution

The fourth proportional to 453,794.69, 680,695.93 and 129,581.96 is: 194,374.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,794.69 : 680,695.93 = 129,581.96 : x
  2. Step 2: Convert to fraction form
    453,794.69/680,695.93 = 129,581.96/x
  3. Step 3: Cross multiply
    453,794.69x = 680,695.93 × 129,581.96
  4. Step 4: Simplify right side
    453,794.69x = 88,205,909,531.92
  5. Step 5: Solve for x
    x = 88,205,909,531.92/453,794.69
  6. Step 6: Final answer
    x = 194,374.04

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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.