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Finding the Fourth Proportional to 359,856.19, 539,193.48 and 123,069.70

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Solution

The fourth proportional to 359,856.19, 539,193.48 and 123,069.70 is: 184,402.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,856.19 : 539,193.48 = 123,069.70 : x
  2. Step 2: Convert to fraction form
    359,856.19/539,193.48 = 123,069.70/x
  3. Step 3: Cross multiply
    359,856.19x = 539,193.48 × 123,069.70
  4. Step 4: Simplify right side
    359,856.19x = 66,358,379,825.56
  5. Step 5: Solve for x
    x = 66,358,379,825.56/359,856.19
  6. Step 6: Final answer
    x = 184,402.50

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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.