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Finding the Fourth Proportional to 359,849.34, 539,771.57 and 119,981.61

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Solution

The fourth proportional to 359,849.34, 539,771.57 and 119,981.61 is: 179,971.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,849.34 : 539,771.57 = 119,981.61 : x
  2. Step 2: Convert to fraction form
    359,849.34/539,771.57 = 119,981.61/x
  3. Step 3: Cross multiply
    359,849.34x = 539,771.57 × 119,981.61
  4. Step 4: Simplify right side
    359,849.34x = 64,762,658,702.06
  5. Step 5: Solve for x
    x = 64,762,658,702.06/359,849.34
  6. Step 6: Final answer
    x = 179,971.59

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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.