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Finding the Fourth Proportional to 61,340.96, 84,648.35 and 34,116.90

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Solution

The fourth proportional to 61,340.96, 84,648.35 and 34,116.90 is: 47,080.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,340.96 : 84,648.35 = 34,116.90 : x
  2. Step 2: Convert to fraction form
    61,340.96/84,648.35 = 34,116.90/x
  3. Step 3: Cross multiply
    61,340.96x = 84,648.35 × 34,116.90
  4. Step 4: Simplify right side
    61,340.96x = 2,887,939,121.53
  5. Step 5: Solve for x
    x = 2,887,939,121.53/61,340.96
  6. Step 6: Final answer
    x = 47,080.11

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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.