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Finding the Fourth Proportional to 256,061.60, 384,265.20 and 167,098.40

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Solution

The fourth proportional to 256,061.60, 384,265.20 and 167,098.40 is: 250,760.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,061.60 : 384,265.20 = 167,098.40 : x
  2. Step 2: Convert to fraction form
    256,061.60/384,265.20 = 167,098.40/x
  3. Step 3: Cross multiply
    256,061.60x = 384,265.20 × 167,098.40
  4. Step 4: Simplify right side
    256,061.60x = 64,210,100,095.68
  5. Step 5: Solve for x
    x = 64,210,100,095.68/256,061.60
  6. Step 6: Final answer
    x = 250,760.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.