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Finding the Fourth Proportional to 131,884.68, 182,000.88 and 71,455.72

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Solution

The fourth proportional to 131,884.68, 182,000.88 and 71,455.72 is: 98,608.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,884.68 : 182,000.88 = 71,455.72 : x
  2. Step 2: Convert to fraction form
    131,884.68/182,000.88 = 71,455.72/x
  3. Step 3: Cross multiply
    131,884.68x = 182,000.88 × 71,455.72
  4. Step 4: Simplify right side
    131,884.68x = 13,005,003,921.03
  5. Step 5: Solve for x
    x = 13,005,003,921.03/131,884.68
  6. Step 6: Final answer
    x = 98,608.91

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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.