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Finding the Fourth Proportional to 84,037.76, 115,972.14 and 45,797.32

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Solution

The fourth proportional to 84,037.76, 115,972.14 and 45,797.32 is: 63,200.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,037.76 : 115,972.14 = 45,797.32 : x
  2. Step 2: Convert to fraction form
    84,037.76/115,972.14 = 45,797.32/x
  3. Step 3: Cross multiply
    84,037.76x = 115,972.14 × 45,797.32
  4. Step 4: Simplify right side
    84,037.76x = 5,311,213,122.64
  5. Step 5: Solve for x
    x = 5,311,213,122.64/84,037.76
  6. Step 6: Final answer
    x = 63,200.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.