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Finding the Fourth Proportional to 83,127.80, 124,554.90 and 48,006.20

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Solution

The fourth proportional to 83,127.80, 124,554.90 and 48,006.20 is: 71,930.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,127.80 : 124,554.90 = 48,006.20 : x
  2. Step 2: Convert to fraction form
    83,127.80/124,554.90 = 48,006.20/x
  3. Step 3: Cross multiply
    83,127.80x = 124,554.90 × 48,006.20
  4. Step 4: Simplify right side
    83,127.80x = 5,979,407,440.38
  5. Step 5: Solve for x
    x = 5,979,407,440.38/83,127.80
  6. Step 6: Final answer
    x = 71,930.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.