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Finding the Fourth Proportional to 157,863.50, 217,861.68 and 89,886.41

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Solution

The fourth proportional to 157,863.50, 217,861.68 and 89,886.41 is: 124,048.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,863.50 : 217,861.68 = 89,886.41 : x
  2. Step 2: Convert to fraction form
    157,863.50/217,861.68 = 89,886.41/x
  3. Step 3: Cross multiply
    157,863.50x = 217,861.68 × 89,886.41
  4. Step 4: Simplify right side
    157,863.50x = 19,582,804,291.77
  5. Step 5: Solve for x
    x = 19,582,804,291.77/157,863.50
  6. Step 6: Final answer
    x = 124,048.97

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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.