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Finding the Fourth Proportional to 132,161.16, 182,385.72 and 71,734.32

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Solution

The fourth proportional to 132,161.16, 182,385.72 and 71,734.32 is: 98,995.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,161.16 : 182,385.72 = 71,734.32 : x
  2. Step 2: Convert to fraction form
    132,161.16/182,385.72 = 71,734.32/x
  3. Step 3: Cross multiply
    132,161.16x = 182,385.72 × 71,734.32
  4. Step 4: Simplify right side
    132,161.16x = 13,083,315,601.91
  5. Step 5: Solve for x
    x = 13,083,315,601.91/132,161.16
  6. Step 6: Final answer
    x = 98,995.16

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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.