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Finding the Fourth Proportional to 132,357.38, 182,653.18 and 72,741.38

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Solution

The fourth proportional to 132,357.38, 182,653.18 and 72,741.38 is: 100,383.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,357.38 : 182,653.18 = 72,741.38 : x
  2. Step 2: Convert to fraction form
    132,357.38/182,653.18 = 72,741.38/x
  3. Step 3: Cross multiply
    132,357.38x = 182,653.18 × 72,741.38
  4. Step 4: Simplify right side
    132,357.38x = 13,286,443,279.47
  5. Step 5: Solve for x
    x = 13,286,443,279.47/132,357.38
  6. Step 6: Final answer
    x = 100,383.10

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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.