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Finding the Fourth Proportional to 73,896.20, 110,844.30 and 42,715.40

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Solution

The fourth proportional to 73,896.20, 110,844.30 and 42,715.40 is: 64,073.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,896.20 : 110,844.30 = 42,715.40 : x
  2. Step 2: Convert to fraction form
    73,896.20/110,844.30 = 42,715.40/x
  3. Step 3: Cross multiply
    73,896.20x = 110,844.30 × 42,715.40
  4. Step 4: Simplify right side
    73,896.20x = 4,734,758,612.22
  5. Step 5: Solve for x
    x = 4,734,758,612.22/73,896.20
  6. Step 6: Final answer
    x = 64,073.10

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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.