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Finding the Fourth Proportional to 256,477.43, 353,957.18 and 141,753.61

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Solution

The fourth proportional to 256,477.43, 353,957.18 and 141,753.61 is: 195,630.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,477.43 : 353,957.18 = 141,753.61 : x
  2. Step 2: Convert to fraction form
    256,477.43/353,957.18 = 141,753.61/x
  3. Step 3: Cross multiply
    256,477.43x = 353,957.18 × 141,753.61
  4. Step 4: Simplify right side
    256,477.43x = 50,174,707,585.96
  5. Step 5: Solve for x
    x = 50,174,707,585.96/256,477.43
  6. Step 6: Final answer
    x = 195,630.11

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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.