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Finding the Fourth Proportional to 135,445.59, 203,187.42 and 56,541.87

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Solution

The fourth proportional to 135,445.59, 203,187.42 and 56,541.87 is: 84,820.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,445.59 : 203,187.42 = 56,541.87 : x
  2. Step 2: Convert to fraction form
    135,445.59/203,187.42 = 56,541.87/x
  3. Step 3: Cross multiply
    135,445.59x = 203,187.42 × 56,541.87
  4. Step 4: Simplify right side
    135,445.59x = 11,488,596,687.28
  5. Step 5: Solve for x
    x = 11,488,596,687.28/135,445.59
  6. Step 6: Final answer
    x = 84,820.75

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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.