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Finding the Fourth Proportional to 61,671.84, 92,540.18 and 43,775.56

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Solution

The fourth proportional to 61,671.84, 92,540.18 and 43,775.56 is: 65,686.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,671.84 : 92,540.18 = 43,775.56 : x
  2. Step 2: Convert to fraction form
    61,671.84/92,540.18 = 43,775.56/x
  3. Step 3: Cross multiply
    61,671.84x = 92,540.18 × 43,775.56
  4. Step 4: Simplify right side
    61,671.84x = 4,050,997,874.02
  5. Step 5: Solve for x
    x = 4,050,997,874.02/61,671.84
  6. Step 6: Final answer
    x = 65,686.35

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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.