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Finding the Fourth Proportional to 359,441.80, 539,162.70 and 149,057.80

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Solution

The fourth proportional to 359,441.80, 539,162.70 and 149,057.80 is: 223,586.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,441.80 : 539,162.70 = 149,057.80 : x
  2. Step 2: Convert to fraction form
    359,441.80/539,162.70 = 149,057.80/x
  3. Step 3: Cross multiply
    359,441.80x = 539,162.70 × 149,057.80
  4. Step 4: Simplify right side
    359,441.80x = 80,366,405,904.06
  5. Step 5: Solve for x
    x = 80,366,405,904.06/359,441.80
  6. Step 6: Final answer
    x = 223,586.70

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1.5x scale

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.