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Finding the Fourth Proportional to 359,643.74, 539,293.49 and 169,945.79

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Solution

The fourth proportional to 359,643.74, 539,293.49 and 169,945.79 is: 254,837.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,643.74 : 539,293.49 = 169,945.79 : x
  2. Step 2: Convert to fraction form
    359,643.74/539,293.49 = 169,945.79/x
  3. Step 3: Cross multiply
    359,643.74x = 539,293.49 × 169,945.79
  4. Step 4: Simplify right side
    359,643.74x = 91,650,659,123.28
  5. Step 5: Solve for x
    x = 91,650,659,123.28/359,643.74
  6. Step 6: Final answer
    x = 254,837.35

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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.