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Finding the Fourth Proportional to 243,356.52, 365,033.28 and 99,261.78

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Solution

The fourth proportional to 243,356.52, 365,033.28 and 99,261.78 is: 148,892.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,356.52 : 365,033.28 = 99,261.78 : x
  2. Step 2: Convert to fraction form
    243,356.52/365,033.28 = 99,261.78/x
  3. Step 3: Cross multiply
    243,356.52x = 365,033.28 × 99,261.78
  4. Step 4: Simplify right side
    243,356.52x = 36,233,853,132.04
  5. Step 5: Solve for x
    x = 36,233,853,132.04/243,356.52
  6. Step 6: Final answer
    x = 148,892.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.