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Finding the Fourth Proportional to 90,248.53, 124,543.95 and 49,962.96

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Solution

The fourth proportional to 90,248.53, 124,543.95 and 49,962.96 is: 68,949.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,248.53 : 124,543.95 = 49,962.96 : x
  2. Step 2: Convert to fraction form
    90,248.53/124,543.95 = 49,962.96/x
  3. Step 3: Cross multiply
    90,248.53x = 124,543.95 × 49,962.96
  4. Step 4: Simplify right side
    90,248.53x = 6,222,585,151.71
  5. Step 5: Solve for x
    x = 6,222,585,151.71/90,248.53
  6. Step 6: Final answer
    x = 68,949.44

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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.