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Finding the Fourth Proportional to 230,840.40, 318,358.96 and 162,737.20

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Solution

The fourth proportional to 230,840.40, 318,358.96 and 162,737.20 is: 224,435.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,840.40 : 318,358.96 = 162,737.20 : x
  2. Step 2: Convert to fraction form
    230,840.40/318,358.96 = 162,737.20/x
  3. Step 3: Cross multiply
    230,840.40x = 318,358.96 × 162,737.20
  4. Step 4: Simplify right side
    230,840.40x = 51,808,845,745.31
  5. Step 5: Solve for x
    x = 51,808,845,745.31/230,840.40
  6. Step 6: Final answer
    x = 224,435.78

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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.