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Finding the Fourth Proportional to 359,729.41, 539,656.45 and 146,613.26

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Solution

The fourth proportional to 359,729.41, 539,656.45 and 146,613.26 is: 219,945.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,729.41 : 539,656.45 = 146,613.26 : x
  2. Step 2: Convert to fraction form
    359,729.41/539,656.45 = 146,613.26/x
  3. Step 3: Cross multiply
    359,729.41x = 539,656.45 × 146,613.26
  4. Step 4: Simplify right side
    359,729.41x = 79,120,793,988.04
  5. Step 5: Solve for x
    x = 79,120,793,988.04/359,729.41
  6. Step 6: Final answer
    x = 219,945.30

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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.