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Finding the Fourth Proportional to 72,366.40, 108,565.08 and 22,445.40

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Solution

The fourth proportional to 72,366.40, 108,565.08 and 22,445.40 is: 33,672.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,366.40 : 108,565.08 = 22,445.40 : x
  2. Step 2: Convert to fraction form
    72,366.40/108,565.08 = 22,445.40/x
  3. Step 3: Cross multiply
    72,366.40x = 108,565.08 × 22,445.40
  4. Step 4: Simplify right side
    72,366.40x = 2,436,786,646.63
  5. Step 5: Solve for x
    x = 2,436,786,646.63/72,366.40
  6. Step 6: Final answer
    x = 33,672.90

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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.