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Finding the Fourth Proportional to 247,605.28, 341,695.28 and 134,428.04

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Solution

The fourth proportional to 247,605.28, 341,695.28 and 134,428.04 is: 185,510.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,605.28 : 341,695.28 = 134,428.04 : x
  2. Step 2: Convert to fraction form
    247,605.28/341,695.28 = 134,428.04/x
  3. Step 3: Cross multiply
    247,605.28x = 341,695.28 × 134,428.04
  4. Step 4: Simplify right side
    247,605.28x = 45,933,426,767.65
  5. Step 5: Solve for x
    x = 45,933,426,767.65/247,605.28
  6. Step 6: Final answer
    x = 185,510.69

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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.