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Finding the Fourth Proportional to 88,721.43, 122,437.42 and 48,436.89

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Solution

The fourth proportional to 88,721.43, 122,437.42 and 48,436.89 is: 66,843.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,721.43 : 122,437.42 = 48,436.89 : x
  2. Step 2: Convert to fraction form
    88,721.43/122,437.42 = 48,436.89/x
  3. Step 3: Cross multiply
    88,721.43x = 122,437.42 × 48,436.89
  4. Step 4: Simplify right side
    88,721.43x = 5,930,487,232.24
  5. Step 5: Solve for x
    x = 5,930,487,232.24/88,721.43
  6. Step 6: Final answer
    x = 66,843.91

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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.