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Finding the Fourth Proportional to 117,543.60, 162,207.90 and 66,552.48

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Solution

The fourth proportional to 117,543.60, 162,207.90 and 66,552.48 is: 91,841.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,543.60 : 162,207.90 = 66,552.48 : x
  2. Step 2: Convert to fraction form
    117,543.60/162,207.90 = 66,552.48/x
  3. Step 3: Cross multiply
    117,543.60x = 162,207.90 × 66,552.48
  4. Step 4: Simplify right side
    117,543.60x = 10,795,338,020.59
  5. Step 5: Solve for x
    x = 10,795,338,020.59/117,543.60
  6. Step 6: Final answer
    x = 91,841.14

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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.