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Finding the Fourth Proportional to 349,381.38, 523,943.14 and 124,681.71

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Solution

The fourth proportional to 349,381.38, 523,943.14 and 124,681.71 is: 186,976.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,381.38 : 523,943.14 = 124,681.71 : x
  2. Step 2: Convert to fraction form
    349,381.38/523,943.14 = 124,681.71/x
  3. Step 3: Cross multiply
    349,381.38x = 523,943.14 × 124,681.71
  4. Step 4: Simplify right side
    349,381.38x = 65,326,126,637.97
  5. Step 5: Solve for x
    x = 65,326,126,637.97/349,381.38
  6. Step 6: Final answer
    x = 186,976.55

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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.