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Finding the Fourth Proportional to 60,195.47, 90,210.16 and 45,388.11

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Solution

The fourth proportional to 60,195.47, 90,210.16 and 45,388.11 is: 68,019.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,195.47 : 90,210.16 = 45,388.11 : x
  2. Step 2: Convert to fraction form
    60,195.47/90,210.16 = 45,388.11/x
  3. Step 3: Cross multiply
    60,195.47x = 90,210.16 × 45,388.11
  4. Step 4: Simplify right side
    60,195.47x = 4,094,468,711.56
  5. Step 5: Solve for x
    x = 4,094,468,711.56/60,195.47
  6. Step 6: Final answer
    x = 68,019.55

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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.