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Finding the Fourth Proportional to 60,460.56, 90,540 and 38,206.80

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Solution

The fourth proportional to 60,460.56, 90,540 and 38,206.80 is: 57,214.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,460.56 : 90,540 = 38,206.80 : x
  2. Step 2: Convert to fraction form
    60,460.56/90,540 = 38,206.80/x
  3. Step 3: Cross multiply
    60,460.56x = 90,540 × 38,206.80
  4. Step 4: Simplify right side
    60,460.56x = 3,459,243,672.00
  5. Step 5: Solve for x
    x = 3,459,243,672.00/60,460.56
  6. Step 6: Final answer
    x = 57,214.88

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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.