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Finding the Fourth Proportional to 256,366.79, 353,793.31 and 141,652.83

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Solution

The fourth proportional to 256,366.79, 353,793.31 and 141,652.83 is: 195,484.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,366.79 : 353,793.31 = 141,652.83 : x
  2. Step 2: Convert to fraction form
    256,366.79/353,793.31 = 141,652.83/x
  3. Step 3: Cross multiply
    256,366.79x = 353,793.31 × 141,652.83
  4. Step 4: Simplify right side
    256,366.79x = 50,115,822,952.45
  5. Step 5: Solve for x
    x = 50,115,822,952.45/256,366.79
  6. Step 6: Final answer
    x = 195,484.84

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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.