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Finding the Fourth Proportional to 95,103.92, 142,638.60 and 28,528.40

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Solution

The fourth proportional to 95,103.92, 142,638.60 and 28,528.40 is: 42,787.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,103.92 : 142,638.60 = 28,528.40 : x
  2. Step 2: Convert to fraction form
    95,103.92/142,638.60 = 28,528.40/x
  3. Step 3: Cross multiply
    95,103.92x = 142,638.60 × 28,528.40
  4. Step 4: Simplify right side
    95,103.92x = 4,069,251,036.24
  5. Step 5: Solve for x
    x = 4,069,251,036.24/95,103.92
  6. Step 6: Final answer
    x = 42,787.42

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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.