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Finding the Fourth Proportional to 70,965.52, 106,445.95 and 28,833.10

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Solution

The fourth proportional to 70,965.52, 106,445.95 and 28,833.10 is: 43,248.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,965.52 : 106,445.95 = 28,833.10 : x
  2. Step 2: Convert to fraction form
    70,965.52/106,445.95 = 28,833.10/x
  3. Step 3: Cross multiply
    70,965.52x = 106,445.95 × 28,833.10
  4. Step 4: Simplify right side
    70,965.52x = 3,069,166,382.75
  5. Step 5: Solve for x
    x = 3,069,166,382.75/70,965.52
  6. Step 6: Final answer
    x = 43,248.70

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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.