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Finding the Fourth Proportional to 91,181.52, 125,851.44 and 59,294.88

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Solution

The fourth proportional to 91,181.52, 125,851.44 and 59,294.88 is: 81,840.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,181.52 : 125,851.44 = 59,294.88 : x
  2. Step 2: Convert to fraction form
    91,181.52/125,851.44 = 59,294.88/x
  3. Step 3: Cross multiply
    91,181.52x = 125,851.44 × 59,294.88
  4. Step 4: Simplify right side
    91,181.52x = 7,462,346,032.63
  5. Step 5: Solve for x
    x = 7,462,346,032.63/91,181.52
  6. Step 6: Final answer
    x = 81,840.55

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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.