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Finding the Fourth Proportional to 132,170.01, 182,391.71 and 71,740.77

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Solution

The fourth proportional to 132,170.01, 182,391.71 and 71,740.77 is: 99,000.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,170.01 : 182,391.71 = 71,740.77 : x
  2. Step 2: Convert to fraction form
    132,170.01/182,391.71 = 71,740.77/x
  3. Step 3: Cross multiply
    132,170.01x = 182,391.71 × 71,740.77
  4. Step 4: Simplify right side
    132,170.01x = 13,084,921,717.02
  5. Step 5: Solve for x
    x = 13,084,921,717.02/132,170.01
  6. Step 6: Final answer
    x = 99,000.69

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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.