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Finding the Fourth Proportional to 247,908.40, 342,113.46 and 134,731.24

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Solution

The fourth proportional to 247,908.40, 342,113.46 and 134,731.24 is: 185,929.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,908.40 : 342,113.46 = 134,731.24 : x
  2. Step 2: Convert to fraction form
    247,908.40/342,113.46 = 134,731.24/x
  3. Step 3: Cross multiply
    247,908.40x = 342,113.46 × 134,731.24
  4. Step 4: Simplify right side
    247,908.40x = 46,093,370,686.49
  5. Step 5: Solve for x
    x = 46,093,370,686.49/247,908.40
  6. Step 6: Final answer
    x = 185,929.04

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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.