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Finding the Fourth Proportional to 60,565.20, 90,815.40 and 25,465.20

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Solution

The fourth proportional to 60,565.20, 90,815.40 and 25,465.20 is: 38,184.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,565.20 : 90,815.40 = 25,465.20 : x
  2. Step 2: Convert to fraction form
    60,565.20/90,815.40 = 25,465.20/x
  3. Step 3: Cross multiply
    60,565.20x = 90,815.40 × 25,465.20
  4. Step 4: Simplify right side
    60,565.20x = 2,312,632,324.08
  5. Step 5: Solve for x
    x = 2,312,632,324.08/60,565.20
  6. Step 6: Final answer
    x = 38,184.18

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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.