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Finding the Fourth Proportional to 102,734.10, 154,101.15 and 28,862.10

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Solution

The fourth proportional to 102,734.10, 154,101.15 and 28,862.10 is: 43,293.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,734.10 : 154,101.15 = 28,862.10 : x
  2. Step 2: Convert to fraction form
    102,734.10/154,101.15 = 28,862.10/x
  3. Step 3: Cross multiply
    102,734.10x = 154,101.15 × 28,862.10
  4. Step 4: Simplify right side
    102,734.10x = 4,447,682,801.42
  5. Step 5: Solve for x
    x = 4,447,682,801.42/102,734.10
  6. Step 6: Final answer
    x = 43,293.15

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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.