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Finding the Fourth Proportional to 89,773.66, 123,886.79 and 48,937.78

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Solution

The fourth proportional to 89,773.66, 123,886.79 and 48,937.78 is: 67,533.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,773.66 : 123,886.79 = 48,937.78 : x
  2. Step 2: Convert to fraction form
    89,773.66/123,886.79 = 48,937.78/x
  3. Step 3: Cross multiply
    89,773.66x = 123,886.79 × 48,937.78
  4. Step 4: Simplify right side
    89,773.66x = 6,062,743,854.49
  5. Step 5: Solve for x
    x = 6,062,743,854.49/89,773.66
  6. Step 6: Final answer
    x = 67,533.66

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1.5x scale

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.