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Finding the Fourth Proportional to 71,575.88, 98,783.82 and 43,281.77

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Solution

The fourth proportional to 71,575.88, 98,783.82 and 43,281.77 is: 59,734.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,575.88 : 98,783.82 = 43,281.77 : x
  2. Step 2: Convert to fraction form
    71,575.88/98,783.82 = 43,281.77/x
  3. Step 3: Cross multiply
    71,575.88x = 98,783.82 × 43,281.77
  4. Step 4: Simplify right side
    71,575.88x = 4,275,538,083.04
  5. Step 5: Solve for x
    x = 4,275,538,083.04/71,575.88
  6. Step 6: Final answer
    x = 59,734.35

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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.