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Finding the Fourth Proportional to 83,874.91, 115,750.55 and 48,071.83

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Solution

The fourth proportional to 83,874.91, 115,750.55 and 48,071.83 is: 66,340.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,874.91 : 115,750.55 = 48,071.83 : x
  2. Step 2: Convert to fraction form
    83,874.91/115,750.55 = 48,071.83/x
  3. Step 3: Cross multiply
    83,874.91x = 115,750.55 × 48,071.83
  4. Step 4: Simplify right side
    83,874.91x = 5,564,340,762.01
  5. Step 5: Solve for x
    x = 5,564,340,762.01/83,874.91
  6. Step 6: Final answer
    x = 66,340.94

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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.