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Finding the Fourth Proportional to 117,557.76, 176,377.60 and 43,706.88

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Solution

The fourth proportional to 117,557.76, 176,377.60 and 43,706.88 is: 65,575.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,557.76 : 176,377.60 = 43,706.88 : x
  2. Step 2: Convert to fraction form
    117,557.76/176,377.60 = 43,706.88/x
  3. Step 3: Cross multiply
    117,557.76x = 176,377.60 × 43,706.88
  4. Step 4: Simplify right side
    117,557.76x = 7,708,914,597.89
  5. Step 5: Solve for x
    x = 7,708,914,597.89/117,557.76
  6. Step 6: Final answer
    x = 65,575.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.