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Finding the Fourth Proportional to 79,753.10, 119,629.84 and 74,881.58

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Solution

The fourth proportional to 79,753.10, 119,629.84 and 74,881.58 is: 112,322.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,753.10 : 119,629.84 = 74,881.58 : x
  2. Step 2: Convert to fraction form
    79,753.10/119,629.84 = 74,881.58/x
  3. Step 3: Cross multiply
    79,753.10x = 119,629.84 × 74,881.58
  4. Step 4: Simplify right side
    79,753.10x = 8,958,071,434.35
  5. Step 5: Solve for x
    x = 8,958,071,434.35/79,753.10
  6. Step 6: Final answer
    x = 112,322.55

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1.5x scale

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.