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Finding the Fourth Proportional to 90,332.68, 124,663.74 and 54,522.20

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Solution

The fourth proportional to 90,332.68, 124,663.74 and 54,522.20 is: 75,243.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,332.68 : 124,663.74 = 54,522.20 : x
  2. Step 2: Convert to fraction form
    90,332.68/124,663.74 = 54,522.20/x
  3. Step 3: Cross multiply
    90,332.68x = 124,663.74 × 54,522.20
  4. Step 4: Simplify right side
    90,332.68x = 6,796,941,365.03
  5. Step 5: Solve for x
    x = 6,796,941,365.03/90,332.68
  6. Step 6: Final answer
    x = 75,243.44

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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.