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Finding the Fourth Proportional to 359,384.60, 539,141.70 and 149,043.80

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Solution

The fourth proportional to 359,384.60, 539,141.70 and 149,043.80 is: 223,592.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,384.60 : 539,141.70 = 149,043.80 : x
  2. Step 2: Convert to fraction form
    359,384.60/539,141.70 = 149,043.80/x
  3. Step 3: Cross multiply
    359,384.60x = 539,141.70 × 149,043.80
  4. Step 4: Simplify right side
    359,384.60x = 80,355,727,706.46
  5. Step 5: Solve for x
    x = 80,355,727,706.46/359,384.60
  6. Step 6: Final answer
    x = 223,592.57

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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.