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Finding the Fourth Proportional to 176,456.28, 243,440.46 and 100,964.28

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Solution

The fourth proportional to 176,456.28, 243,440.46 and 100,964.28 is: 139,291.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,456.28 : 243,440.46 = 100,964.28 : x
  2. Step 2: Convert to fraction form
    176,456.28/243,440.46 = 100,964.28/x
  3. Step 3: Cross multiply
    176,456.28x = 243,440.46 × 100,964.28
  4. Step 4: Simplify right side
    176,456.28x = 24,578,790,766.77
  5. Step 5: Solve for x
    x = 24,578,790,766.77/176,456.28
  6. Step 6: Final answer
    x = 139,291.11

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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.