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Finding the Fourth Proportional to 350,895.92, 526,117.53 and 137,685.38

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Solution

The fourth proportional to 350,895.92, 526,117.53 and 137,685.38 is: 206,439.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,895.92 : 526,117.53 = 137,685.38 : x
  2. Step 2: Convert to fraction form
    350,895.92/526,117.53 = 137,685.38/x
  3. Step 3: Cross multiply
    350,895.92x = 526,117.53 × 137,685.38
  4. Step 4: Simplify right side
    350,895.92x = 72,438,689,412.12
  5. Step 5: Solve for x
    x = 72,438,689,412.12/350,895.92
  6. Step 6: Final answer
    x = 206,439.25

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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.