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Finding the Fourth Proportional to 357,073.91, 535,869.76 and 132,466.38

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Solution

The fourth proportional to 357,073.91, 535,869.76 and 132,466.38 is: 198,795.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,073.91 : 535,869.76 = 132,466.38 : x
  2. Step 2: Convert to fraction form
    357,073.91/535,869.76 = 132,466.38/x
  3. Step 3: Cross multiply
    357,073.91x = 535,869.76 × 132,466.38
  4. Step 4: Simplify right side
    357,073.91x = 70,984,727,258.67
  5. Step 5: Solve for x
    x = 70,984,727,258.67/357,073.91
  6. Step 6: Final answer
    x = 198,795.61

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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.