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Finding the Fourth Proportional to 359,988.52, 539,690.64 and 149,783.80

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Solution

The fourth proportional to 359,988.52, 539,690.64 and 149,783.80 is: 224,554.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,988.52 : 539,690.64 = 149,783.80 : x
  2. Step 2: Convert to fraction form
    359,988.52/539,690.64 = 149,783.80/x
  3. Step 3: Cross multiply
    359,988.52x = 539,690.64 × 149,783.80
  4. Step 4: Simplify right side
    359,988.52x = 80,836,914,883.63
  5. Step 5: Solve for x
    x = 80,836,914,883.63/359,988.52
  6. Step 6: Final answer
    x = 224,554.15

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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.