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Finding the Fourth Proportional to 117,482.47, 162,121.47 and 63,766.35

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Solution

The fourth proportional to 117,482.47, 162,121.47 and 63,766.35 is: 87,995.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,482.47 : 162,121.47 = 63,766.35 : x
  2. Step 2: Convert to fraction form
    117,482.47/162,121.47 = 63,766.35/x
  3. Step 3: Cross multiply
    117,482.47x = 162,121.47 × 63,766.35
  4. Step 4: Simplify right side
    117,482.47x = 10,337,894,398.53
  5. Step 5: Solve for x
    x = 10,337,894,398.53/117,482.47
  6. Step 6: Final answer
    x = 87,995.21

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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.