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Finding the Fourth Proportional to 61,773.10, 85,182.78 and 52,850.14

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Solution

The fourth proportional to 61,773.10, 85,182.78 and 52,850.14 is: 72,878.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,773.10 : 85,182.78 = 52,850.14 : x
  2. Step 2: Convert to fraction form
    61,773.10/85,182.78 = 52,850.14/x
  3. Step 3: Cross multiply
    61,773.10x = 85,182.78 × 52,850.14
  4. Step 4: Simplify right side
    61,773.10x = 4,501,921,848.59
  5. Step 5: Solve for x
    x = 4,501,921,848.59/61,773.10
  6. Step 6: Final answer
    x = 72,878.35

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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.