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Finding the Fourth Proportional to 359,279.13, 539,005.26 and 134,641.55

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Solution

The fourth proportional to 359,279.13, 539,005.26 and 134,641.55 is: 201,994.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,279.13 : 539,005.26 = 134,641.55 : x
  2. Step 2: Convert to fraction form
    359,279.13/539,005.26 = 134,641.55/x
  3. Step 3: Cross multiply
    359,279.13x = 539,005.26 × 134,641.55
  4. Step 4: Simplify right side
    359,279.13x = 72,572,503,664.55
  5. Step 5: Solve for x
    x = 72,572,503,664.55/359,279.13
  6. Step 6: Final answer
    x = 201,994.77

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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.