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Finding the Fourth Proportional to 90,792.68, 125,294.85 and 49,957.34

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Solution

The fourth proportional to 90,792.68, 125,294.85 and 49,957.34 is: 68,941.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,792.68 : 125,294.85 = 49,957.34 : x
  2. Step 2: Convert to fraction form
    90,792.68/125,294.85 = 49,957.34/x
  3. Step 3: Cross multiply
    90,792.68x = 125,294.85 × 49,957.34
  4. Step 4: Simplify right side
    90,792.68x = 6,259,396,795.22
  5. Step 5: Solve for x
    x = 6,259,396,795.22/90,792.68
  6. Step 6: Final answer
    x = 68,941.65

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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.