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Finding the Fourth Proportional to 89,474.52, 123,477.22 and 48,641.40

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Solution

The fourth proportional to 89,474.52, 123,477.22 and 48,641.40 is: 67,126.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,474.52 : 123,477.22 = 48,641.40 : x
  2. Step 2: Convert to fraction form
    89,474.52/123,477.22 = 48,641.40/x
  3. Step 3: Cross multiply
    89,474.52x = 123,477.22 × 48,641.40
  4. Step 4: Simplify right side
    89,474.52x = 6,006,104,848.91
  5. Step 5: Solve for x
    x = 6,006,104,848.91/89,474.52
  6. Step 6: Final answer
    x = 67,126.43

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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.