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Finding the Fourth Proportional to 72,332.40, 108,466.20 and 32,869.20

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Solution

The fourth proportional to 72,332.40, 108,466.20 and 32,869.20 is: 49,289.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,332.40 : 108,466.20 = 32,869.20 : x
  2. Step 2: Convert to fraction form
    72,332.40/108,466.20 = 32,869.20/x
  3. Step 3: Cross multiply
    72,332.40x = 108,466.20 × 32,869.20
  4. Step 4: Simplify right side
    72,332.40x = 3,565,197,221.04
  5. Step 5: Solve for x
    x = 3,565,197,221.04/72,332.40
  6. Step 6: Final answer
    x = 49,289.08

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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.