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Finding the Fourth Proportional to 158,882.60, 219,261.82 and 87,264.20

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Solution

The fourth proportional to 158,882.60, 219,261.82 and 87,264.20 is: 120,426.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,882.60 : 219,261.82 = 87,264.20 : x
  2. Step 2: Convert to fraction form
    158,882.60/219,261.82 = 87,264.20/x
  3. Step 3: Cross multiply
    158,882.60x = 219,261.82 × 87,264.20
  4. Step 4: Simplify right side
    158,882.60x = 19,133,707,312.84
  5. Step 5: Solve for x
    x = 19,133,707,312.84/158,882.60
  6. Step 6: Final answer
    x = 120,426.70

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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.