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Finding the Fourth Proportional to 72,332.40, 108,498.60 and 22,412.10

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Solution

The fourth proportional to 72,332.40, 108,498.60 and 22,412.10 is: 33,618.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,332.40 : 108,498.60 = 22,412.10 : x
  2. Step 2: Convert to fraction form
    72,332.40/108,498.60 = 22,412.10/x
  3. Step 3: Cross multiply
    72,332.40x = 108,498.60 × 22,412.10
  4. Step 4: Simplify right side
    72,332.40x = 2,431,681,473.06
  5. Step 5: Solve for x
    x = 2,431,681,473.06/72,332.40
  6. Step 6: Final answer
    x = 33,618.15

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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.