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Finding the Fourth Proportional to 157,138.32, 216,874.24 and 92,586.96

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Solution

The fourth proportional to 157,138.32, 216,874.24 and 92,586.96 is: 127,783.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,138.32 : 216,874.24 = 92,586.96 : x
  2. Step 2: Convert to fraction form
    157,138.32/216,874.24 = 92,586.96/x
  3. Step 3: Cross multiply
    157,138.32x = 216,874.24 × 92,586.96
  4. Step 4: Simplify right side
    157,138.32x = 20,079,726,583.91
  5. Step 5: Solve for x
    x = 20,079,726,583.91/157,138.32
  6. Step 6: Final answer
    x = 127,783.77

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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.