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Finding the Fourth Proportional to 71,801.15, 107,466.93 and 52,820.71

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Solution

The fourth proportional to 71,801.15, 107,466.93 and 52,820.71 is: 79,058.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,801.15 : 107,466.93 = 52,820.71 : x
  2. Step 2: Convert to fraction form
    71,801.15/107,466.93 = 52,820.71/x
  3. Step 3: Cross multiply
    71,801.15x = 107,466.93 × 52,820.71
  4. Step 4: Simplify right side
    71,801.15x = 5,676,479,275.45
  5. Step 5: Solve for x
    x = 5,676,479,275.45/71,801.15
  6. Step 6: Final answer
    x = 79,058.34

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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.