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Finding the Fourth Proportional to 68,510.60, 102,741.34 and 29,070.44

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Solution

The fourth proportional to 68,510.60, 102,741.34 and 29,070.44 is: 43,595.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,510.60 : 102,741.34 = 29,070.44 : x
  2. Step 2: Convert to fraction form
    68,510.60/102,741.34 = 29,070.44/x
  3. Step 3: Cross multiply
    68,510.60x = 102,741.34 × 29,070.44
  4. Step 4: Simplify right side
    68,510.60x = 2,986,735,959.99
  5. Step 5: Solve for x
    x = 2,986,735,959.99/68,510.60
  6. Step 6: Final answer
    x = 43,595.24

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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.