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Finding the Fourth Proportional to 89,737.42, 123,836.03 and 48,901.90

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Solution

The fourth proportional to 89,737.42, 123,836.03 and 48,901.90 is: 67,483.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,737.42 : 123,836.03 = 48,901.90 : x
  2. Step 2: Convert to fraction form
    89,737.42/123,836.03 = 48,901.90/x
  3. Step 3: Cross multiply
    89,737.42x = 123,836.03 × 48,901.90
  4. Step 4: Simplify right side
    89,737.42x = 6,055,816,968.12
  5. Step 5: Solve for x
    x = 6,055,816,968.12/89,737.42
  6. Step 6: Final answer
    x = 67,483.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.