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Finding the Fourth Proportional to 72,555.80, 108,795.02 and 25,158.82

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Solution

The fourth proportional to 72,555.80, 108,795.02 and 25,158.82 is: 37,724.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,555.80 : 108,795.02 = 25,158.82 : x
  2. Step 2: Convert to fraction form
    72,555.80/108,795.02 = 25,158.82/x
  3. Step 3: Cross multiply
    72,555.80x = 108,795.02 × 25,158.82
  4. Step 4: Simplify right side
    72,555.80x = 2,737,154,325.08
  5. Step 5: Solve for x
    x = 2,737,154,325.08/72,555.80
  6. Step 6: Final answer
    x = 37,724.82

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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.