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Finding the Fourth Proportional to 109,727.89, 151,425.12 and 59,426.89

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Solution

The fourth proportional to 109,727.89, 151,425.12 and 59,426.89 is: 82,009.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,727.89 : 151,425.12 = 59,426.89 : x
  2. Step 2: Convert to fraction form
    109,727.89/151,425.12 = 59,426.89/x
  3. Step 3: Cross multiply
    109,727.89x = 151,425.12 × 59,426.89
  4. Step 4: Simplify right side
    109,727.89x = 8,998,723,949.48
  5. Step 5: Solve for x
    x = 8,998,723,949.48/109,727.89
  6. Step 6: Final answer
    x = 82,009.45

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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.