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Finding the Fourth Proportional to 238,516.60, 357,808.92 and 80,790.16

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Solution

The fourth proportional to 238,516.60, 357,808.92 and 80,790.16 is: 121,196.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,516.60 : 357,808.92 = 80,790.16 : x
  2. Step 2: Convert to fraction form
    238,516.60/357,808.92 = 80,790.16/x
  3. Step 3: Cross multiply
    238,516.60x = 357,808.92 × 80,790.16
  4. Step 4: Simplify right side
    238,516.60x = 28,907,439,896.23
  5. Step 5: Solve for x
    x = 28,907,439,896.23/238,516.60
  6. Step 6: Final answer
    x = 121,196.76

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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.