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Finding the Fourth Proportional to 199,488.96, 275,045.76 and 127,751.04

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Solution

The fourth proportional to 199,488.96, 275,045.76 and 127,751.04 is: 176,136.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,488.96 : 275,045.76 = 127,751.04 : x
  2. Step 2: Convert to fraction form
    199,488.96/275,045.76 = 127,751.04/x
  3. Step 3: Cross multiply
    199,488.96x = 275,045.76 × 127,751.04
  4. Step 4: Simplify right side
    199,488.96x = 35,137,381,887.59
  5. Step 5: Solve for x
    x = 35,137,381,887.59/199,488.96
  6. Step 6: Final answer
    x = 176,136.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.