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Finding the Fourth Proportional to 372,578.96, 558,696.90 and 119,812.70

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Solution

The fourth proportional to 372,578.96, 558,696.90 and 119,812.70 is: 179,663.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,578.96 : 558,696.90 = 119,812.70 : x
  2. Step 2: Convert to fraction form
    372,578.96/558,696.90 = 119,812.70/x
  3. Step 3: Cross multiply
    372,578.96x = 558,696.90 × 119,812.70
  4. Step 4: Simplify right side
    372,578.96x = 66,938,984,070.63
  5. Step 5: Solve for x
    x = 66,938,984,070.63/372,578.96
  6. Step 6: Final answer
    x = 179,663.89

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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.