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Finding the Fourth Proportional to 48,658.97, 67,123.88 and 42,271.22

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Solution

The fourth proportional to 48,658.97, 67,123.88 and 42,271.22 is: 58,312.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,658.97 : 67,123.88 = 42,271.22 : x
  2. Step 2: Convert to fraction form
    48,658.97/67,123.88 = 42,271.22/x
  3. Step 3: Cross multiply
    48,658.97x = 67,123.88 × 42,271.22
  4. Step 4: Simplify right side
    48,658.97x = 2,837,408,298.73
  5. Step 5: Solve for x
    x = 2,837,408,298.73/48,658.97
  6. Step 6: Final answer
    x = 58,312.13

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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.