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Finding the Fourth Proportional to 88,534, 122,176.92 and 48,790

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Solution

The fourth proportional to 88,534, 122,176.92 and 48,790 is: 67,330.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,534 : 122,176.92 = 48,790 : x
  2. Step 2: Convert to fraction form
    88,534/122,176.92 = 48,790/x
  3. Step 3: Cross multiply
    88,534x = 122,176.92 × 48,790
  4. Step 4: Simplify right side
    88,534x = 5,961,011,926.80
  5. Step 5: Solve for x
    x = 5,961,011,926.80/88,534
  6. Step 6: Final answer
    x = 67,330.20

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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.