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Finding the Fourth Proportional to 71,555.34, 98,765.64 and 44,681.70

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Solution

The fourth proportional to 71,555.34, 98,765.64 and 44,681.70 is: 61,672.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,555.34 : 98,765.64 = 44,681.70 : x
  2. Step 2: Convert to fraction form
    71,555.34/98,765.64 = 44,681.70/x
  3. Step 3: Cross multiply
    71,555.34x = 98,765.64 × 44,681.70
  4. Step 4: Simplify right side
    71,555.34x = 4,413,016,696.79
  5. Step 5: Solve for x
    x = 4,413,016,696.79/71,555.34
  6. Step 6: Final answer
    x = 61,672.78

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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.