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Finding the Fourth Proportional to 359,815.92, 539,726.64 and 123,160.65

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Solution

The fourth proportional to 359,815.92, 539,726.64 and 123,160.65 is: 184,741.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,815.92 : 539,726.64 = 123,160.65 : x
  2. Step 2: Convert to fraction form
    359,815.92/539,726.64 = 123,160.65/x
  3. Step 3: Cross multiply
    359,815.92x = 539,726.64 × 123,160.65
  4. Step 4: Simplify right side
    359,815.92x = 66,473,085,047.63
  5. Step 5: Solve for x
    x = 66,473,085,047.63/359,815.92
  6. Step 6: Final answer
    x = 184,741.92

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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.