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Finding the Fourth Proportional to 60,480.78, 90,721.18 and 16,105.34

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Solution

The fourth proportional to 60,480.78, 90,721.18 and 16,105.34 is: 24,158.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,480.78 : 90,721.18 = 16,105.34 : x
  2. Step 2: Convert to fraction form
    60,480.78/90,721.18 = 16,105.34/x
  3. Step 3: Cross multiply
    60,480.78x = 90,721.18 × 16,105.34
  4. Step 4: Simplify right side
    60,480.78x = 1,461,095,449.10
  5. Step 5: Solve for x
    x = 1,461,095,449.10/60,480.78
  6. Step 6: Final answer
    x = 24,158.01

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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.