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Finding the Fourth Proportional to 70,719.52, 106,073.64 and 41,118.48

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Solution

The fourth proportional to 70,719.52, 106,073.64 and 41,118.48 is: 61,674.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,719.52 : 106,073.64 = 41,118.48 : x
  2. Step 2: Convert to fraction form
    70,719.52/106,073.64 = 41,118.48/x
  3. Step 3: Cross multiply
    70,719.52x = 106,073.64 × 41,118.48
  4. Step 4: Simplify right side
    70,719.52x = 4,361,586,844.87
  5. Step 5: Solve for x
    x = 4,361,586,844.87/70,719.52
  6. Step 6: Final answer
    x = 61,674.44

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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.