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Finding the Fourth Proportional to 132,210, 182,449.80 and 72,594

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Solution

The fourth proportional to 132,210, 182,449.80 and 72,594 is: 100,179.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,210 : 182,449.80 = 72,594 : x
  2. Step 2: Convert to fraction form
    132,210/182,449.80 = 72,594/x
  3. Step 3: Cross multiply
    132,210x = 182,449.80 × 72,594
  4. Step 4: Simplify right side
    132,210x = 13,244,760,781.20
  5. Step 5: Solve for x
    x = 13,244,760,781.20/132,210
  6. Step 6: Final answer
    x = 100,179.72

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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.