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Finding the Fourth Proportional to 158,882.68, 219,262.08 and 87,269.44

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Solution

The fourth proportional to 158,882.68, 219,262.08 and 87,269.44 is: 120,434.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,882.68 : 219,262.08 = 87,269.44 : x
  2. Step 2: Convert to fraction form
    158,882.68/219,262.08 = 87,269.44/x
  3. Step 3: Cross multiply
    158,882.68x = 219,262.08 × 87,269.44
  4. Step 4: Simplify right side
    158,882.68x = 19,134,878,934.84
  5. Step 5: Solve for x
    x = 19,134,878,934.84/158,882.68
  6. Step 6: Final answer
    x = 120,434.01

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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.