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Finding the Fourth Proportional to 243,713.61, 365,605.25 and 75,247.79

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Solution

The fourth proportional to 243,713.61, 365,605.25 and 75,247.79 is: 112,882.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,713.61 : 365,605.25 = 75,247.79 : x
  2. Step 2: Convert to fraction form
    243,713.61/365,605.25 = 75,247.79/x
  3. Step 3: Cross multiply
    243,713.61x = 365,605.25 × 75,247.79
  4. Step 4: Simplify right side
    243,713.61x = 27,510,984,870.63
  5. Step 5: Solve for x
    x = 27,510,984,870.63/243,713.61
  6. Step 6: Final answer
    x = 112,882.43

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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.