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Finding the Fourth Proportional to 359,306.45, 539,008.87 and 122,585.57

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Solution

The fourth proportional to 359,306.45, 539,008.87 and 122,585.57 is: 183,895.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,306.45 : 539,008.87 = 122,585.57 : x
  2. Step 2: Convert to fraction form
    359,306.45/539,008.87 = 122,585.57/x
  3. Step 3: Cross multiply
    359,306.45x = 539,008.87 × 122,585.57
  4. Step 4: Simplify right side
    359,306.45x = 66,074,706,868.96
  5. Step 5: Solve for x
    x = 66,074,706,868.96/359,306.45
  6. Step 6: Final answer
    x = 183,895.13

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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.