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Finding the Fourth Proportional to 229,663.92, 316,950.45 and 127,690.20

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Solution

The fourth proportional to 229,663.92, 316,950.45 and 127,690.20 is: 176,220.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,663.92 : 316,950.45 = 127,690.20 : x
  2. Step 2: Convert to fraction form
    229,663.92/316,950.45 = 127,690.20/x
  3. Step 3: Cross multiply
    229,663.92x = 316,950.45 × 127,690.20
  4. Step 4: Simplify right side
    229,663.92x = 40,471,466,350.59
  5. Step 5: Solve for x
    x = 40,471,466,350.59/229,663.92
  6. Step 6: Final answer
    x = 176,220.39

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1.5x scale

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.