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Finding the Fourth Proportional to 104,350.65, 156,524.45 and 72,300.16

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Solution

The fourth proportional to 104,350.65, 156,524.45 and 72,300.16 is: 108,449.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,350.65 : 156,524.45 = 72,300.16 : x
  2. Step 2: Convert to fraction form
    104,350.65/156,524.45 = 72,300.16/x
  3. Step 3: Cross multiply
    104,350.65x = 156,524.45 × 72,300.16
  4. Step 4: Simplify right side
    104,350.65x = 11,316,742,778.91
  5. Step 5: Solve for x
    x = 11,316,742,778.91/104,350.65
  6. Step 6: Final answer
    x = 108,449.19

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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.