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Finding the Fourth Proportional to 117,586.08, 162,264.12 and 63,870

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Solution

The fourth proportional to 117,586.08, 162,264.12 and 63,870 is: 88,138.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,586.08 : 162,264.12 = 63,870 : x
  2. Step 2: Convert to fraction form
    117,586.08/162,264.12 = 63,870/x
  3. Step 3: Cross multiply
    117,586.08x = 162,264.12 × 63,870
  4. Step 4: Simplify right side
    117,586.08x = 10,363,809,344.40
  5. Step 5: Solve for x
    x = 10,363,809,344.40/117,586.08
  6. Step 6: Final answer
    x = 88,138.06

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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.