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Finding the Fourth Proportional to 359,826.60, 539,708.55 and 146,616.98

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Solution

The fourth proportional to 359,826.60, 539,708.55 and 146,616.98 is: 219,912.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,826.60 : 539,708.55 = 146,616.98 : x
  2. Step 2: Convert to fraction form
    359,826.60/539,708.55 = 146,616.98/x
  3. Step 3: Cross multiply
    359,826.60x = 539,708.55 × 146,616.98
  4. Step 4: Simplify right side
    359,826.60x = 79,130,434,982.64
  5. Step 5: Solve for x
    x = 79,130,434,982.64/359,826.60
  6. Step 6: Final answer
    x = 219,912.69

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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.