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Finding the Fourth Proportional to 75,467.30, 113,200.95 and 40,475.30

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Solution

The fourth proportional to 75,467.30, 113,200.95 and 40,475.30 is: 60,712.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,467.30 : 113,200.95 = 40,475.30 : x
  2. Step 2: Convert to fraction form
    75,467.30/113,200.95 = 40,475.30/x
  3. Step 3: Cross multiply
    75,467.30x = 113,200.95 × 40,475.30
  4. Step 4: Simplify right side
    75,467.30x = 4,581,842,411.54
  5. Step 5: Solve for x
    x = 4,581,842,411.54/75,467.30
  6. Step 6: Final answer
    x = 60,712.95

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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.