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Finding the Fourth Proportional to 359,265.36, 539,095.50 and 134,780.88

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Solution

The fourth proportional to 359,265.36, 539,095.50 and 134,780.88 is: 202,245.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,265.36 : 539,095.50 = 134,780.88 : x
  2. Step 2: Convert to fraction form
    359,265.36/539,095.50 = 134,780.88/x
  3. Step 3: Cross multiply
    359,265.36x = 539,095.50 × 134,780.88
  4. Step 4: Simplify right side
    359,265.36x = 72,659,765,894.04
  5. Step 5: Solve for x
    x = 72,659,765,894.04/359,265.36
  6. Step 6: Final answer
    x = 202,245.40

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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.