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Finding the Fourth Proportional to 349,382.88, 523,945.38 and 124,683.22

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Solution

The fourth proportional to 349,382.88, 523,945.38 and 124,683.22 is: 186,978.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,382.88 : 523,945.38 = 124,683.22 : x
  2. Step 2: Convert to fraction form
    349,382.88/523,945.38 = 124,683.22/x
  3. Step 3: Cross multiply
    349,382.88x = 523,945.38 × 124,683.22
  4. Step 4: Simplify right side
    349,382.88x = 65,327,197,082.52
  5. Step 5: Solve for x
    x = 65,327,197,082.52/349,382.88
  6. Step 6: Final answer
    x = 186,978.82

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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.