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Finding the Fourth Proportional to 359,268.20, 539,096.70 and 148,927.40

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Solution

The fourth proportional to 359,268.20, 539,096.70 and 148,927.40 is: 223,471.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,268.20 : 539,096.70 = 148,927.40 : x
  2. Step 2: Convert to fraction form
    359,268.20/539,096.70 = 148,927.40/x
  3. Step 3: Cross multiply
    359,268.20x = 539,096.70 × 148,927.40
  4. Step 4: Simplify right side
    359,268.20x = 80,286,269,879.58
  5. Step 5: Solve for x
    x = 80,286,269,879.58/359,268.20
  6. Step 6: Final answer
    x = 223,471.68

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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.