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Finding the Fourth Proportional to 256,062.60, 384,266.70 and 167,099.40

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Solution

The fourth proportional to 256,062.60, 384,266.70 and 167,099.40 is: 250,761.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,062.60 : 384,266.70 = 167,099.40 : x
  2. Step 2: Convert to fraction form
    256,062.60/384,266.70 = 167,099.40/x
  3. Step 3: Cross multiply
    256,062.60x = 384,266.70 × 167,099.40
  4. Step 4: Simplify right side
    256,062.60x = 64,210,735,009.98
  5. Step 5: Solve for x
    x = 64,210,735,009.98/256,062.60
  6. Step 6: Final answer
    x = 250,761.86

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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.