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Finding the Fourth Proportional to 75,095.20, 112,424.10 and 45,497.80

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Solution

The fourth proportional to 75,095.20, 112,424.10 and 45,497.80 is: 68,114.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,095.20 : 112,424.10 = 45,497.80 : x
  2. Step 2: Convert to fraction form
    75,095.20/112,424.10 = 45,497.80/x
  3. Step 3: Cross multiply
    75,095.20x = 112,424.10 × 45,497.80
  4. Step 4: Simplify right side
    75,095.20x = 5,115,049,216.98
  5. Step 5: Solve for x
    x = 5,115,049,216.98/75,095.20
  6. Step 6: Final answer
    x = 68,114.20

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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.