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Finding the Fourth Proportional to 116,397.60, 174,817.83 and 72,332.28

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Solution

The fourth proportional to 116,397.60, 174,817.83 and 72,332.28 is: 108,636.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,397.60 : 174,817.83 = 72,332.28 : x
  2. Step 2: Convert to fraction form
    116,397.60/174,817.83 = 72,332.28/x
  3. Step 3: Cross multiply
    116,397.60x = 174,817.83 × 72,332.28
  4. Step 4: Simplify right side
    116,397.60x = 12,644,972,228.55
  5. Step 5: Solve for x
    x = 12,644,972,228.55/116,397.60
  6. Step 6: Final answer
    x = 108,636.02

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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.