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Finding the Fourth Proportional to 90,101.59, 124,337.99 and 49,814.33

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Solution

The fourth proportional to 90,101.59, 124,337.99 and 49,814.33 is: 68,742.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,101.59 : 124,337.99 = 49,814.33 : x
  2. Step 2: Convert to fraction form
    90,101.59/124,337.99 = 49,814.33/x
  3. Step 3: Cross multiply
    90,101.59x = 124,337.99 × 49,814.33
  4. Step 4: Simplify right side
    90,101.59x = 6,193,813,168.24
  5. Step 5: Solve for x
    x = 6,193,813,168.24/90,101.59
  6. Step 6: Final answer
    x = 68,742.55

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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.