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Finding the Fourth Proportional to 359,707.60, 539,626.20 and 149,366.80

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Solution

The fourth proportional to 359,707.60, 539,626.20 and 149,366.80 is: 224,077.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,707.60 : 539,626.20 = 149,366.80 : x
  2. Step 2: Convert to fraction form
    359,707.60/539,626.20 = 149,366.80/x
  3. Step 3: Cross multiply
    359,707.60x = 539,626.20 × 149,366.80
  4. Step 4: Simplify right side
    359,707.60x = 80,602,238,690.16
  5. Step 5: Solve for x
    x = 80,602,238,690.16/359,707.60
  6. Step 6: Final answer
    x = 224,077.11

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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.