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Finding the Fourth Proportional to 359,288.93, 538,936.13 and 159,555.69

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Solution

The fourth proportional to 359,288.93, 538,936.13 and 159,555.69 is: 239,334.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,288.93 : 538,936.13 = 159,555.69 : x
  2. Step 2: Convert to fraction form
    359,288.93/538,936.13 = 159,555.69/x
  3. Step 3: Cross multiply
    359,288.93x = 538,936.13 × 159,555.69
  4. Step 4: Simplify right side
    359,288.93x = 85,990,326,486.97
  5. Step 5: Solve for x
    x = 85,990,326,486.97/359,288.93
  6. Step 6: Final answer
    x = 239,334.75

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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.