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Finding the Fourth Proportional to 71,761, 99,030.66 and 43,466.92

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Solution

The fourth proportional to 71,761, 99,030.66 and 43,466.92 is: 59,984.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,761 : 99,030.66 = 43,466.92 : x
  2. Step 2: Convert to fraction form
    71,761/99,030.66 = 43,466.92/x
  3. Step 3: Cross multiply
    71,761x = 99,030.66 × 43,466.92
  4. Step 4: Simplify right side
    71,761x = 4,304,557,775.77
  5. Step 5: Solve for x
    x = 4,304,557,775.77/71,761
  6. Step 6: Final answer
    x = 59,984.64

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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.