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Finding the Fourth Proportional to 245,387.57, 368,278.17 and 127,092.74

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Solution

The fourth proportional to 245,387.57, 368,278.17 and 127,092.74 is: 190,741.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,387.57 : 368,278.17 = 127,092.74 : x
  2. Step 2: Convert to fraction form
    245,387.57/368,278.17 = 127,092.74/x
  3. Step 3: Cross multiply
    245,387.57x = 368,278.17 × 127,092.74
  4. Step 4: Simplify right side
    245,387.57x = 46,805,479,866.10
  5. Step 5: Solve for x
    x = 46,805,479,866.10/245,387.57
  6. Step 6: Final answer
    x = 190,741.04

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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.