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Finding the Fourth Proportional to 123,559.61, 185,269.11 and 48,639.13

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Solution

The fourth proportional to 123,559.61, 185,269.11 and 48,639.13 is: 72,931.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,559.61 : 185,269.11 = 48,639.13 : x
  2. Step 2: Convert to fraction form
    123,559.61/185,269.11 = 48,639.13/x
  3. Step 3: Cross multiply
    123,559.61x = 185,269.11 × 48,639.13
  4. Step 4: Simplify right side
    123,559.61x = 9,011,328,326.27
  5. Step 5: Solve for x
    x = 9,011,328,326.27/123,559.61
  6. Step 6: Final answer
    x = 72,931.02

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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.