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Finding the Fourth Proportional to 60,464.56, 90,546 and 38,210.80

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Solution

The fourth proportional to 60,464.56, 90,546 and 38,210.80 is: 57,220.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,464.56 : 90,546 = 38,210.80 : x
  2. Step 2: Convert to fraction form
    60,464.56/90,546 = 38,210.80/x
  3. Step 3: Cross multiply
    60,464.56x = 90,546 × 38,210.80
  4. Step 4: Simplify right side
    60,464.56x = 3,459,835,096.80
  5. Step 5: Solve for x
    x = 3,459,835,096.80/60,464.56
  6. Step 6: Final answer
    x = 57,220.88

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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.