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Finding the Fourth Proportional to 359,279.12, 539,252.40 and 181,911.80

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Solution

The fourth proportional to 359,279.12, 539,252.40 and 181,911.80 is: 273,036.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,279.12 : 539,252.40 = 181,911.80 : x
  2. Step 2: Convert to fraction form
    359,279.12/539,252.40 = 181,911.80/x
  3. Step 3: Cross multiply
    359,279.12x = 539,252.40 × 181,911.80
  4. Step 4: Simplify right side
    359,279.12x = 98,096,374,738.32
  5. Step 5: Solve for x
    x = 98,096,374,738.32/359,279.12
  6. Step 6: Final answer
    x = 273,036.67

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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.