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Finding the Fourth Proportional to 359,652.34, 539,478.35 and 106,931.73

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Solution

The fourth proportional to 359,652.34, 539,478.35 and 106,931.73 is: 160,397.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,652.34 : 539,478.35 = 106,931.73 : x
  2. Step 2: Convert to fraction form
    359,652.34/539,478.35 = 106,931.73/x
  3. Step 3: Cross multiply
    359,652.34x = 539,478.35 × 106,931.73
  4. Step 4: Simplify right side
    359,652.34x = 57,687,352,728.39
  5. Step 5: Solve for x
    x = 57,687,352,728.39/359,652.34
  6. Step 6: Final answer
    x = 160,397.55

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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.