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Finding the Fourth Proportional to 88,593.55, 122,261.56 and 54,143.86

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Solution

The fourth proportional to 88,593.55, 122,261.56 and 54,143.86 is: 74,720.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,593.55 : 122,261.56 = 54,143.86 : x
  2. Step 2: Convert to fraction form
    88,593.55/122,261.56 = 54,143.86/x
  3. Step 3: Cross multiply
    88,593.55x = 122,261.56 × 54,143.86
  4. Step 4: Simplify right side
    88,593.55x = 6,619,712,788.02
  5. Step 5: Solve for x
    x = 6,619,712,788.02/88,593.55
  6. Step 6: Final answer
    x = 74,720.03

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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.