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Finding the Fourth Proportional to 60,486.10, 90,619.80 and 37,085.20

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Solution

The fourth proportional to 60,486.10, 90,619.80 and 37,085.20 is: 55,560.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,486.10 : 90,619.80 = 37,085.20 : x
  2. Step 2: Convert to fraction form
    60,486.10/90,619.80 = 37,085.20/x
  3. Step 3: Cross multiply
    60,486.10x = 90,619.80 × 37,085.20
  4. Step 4: Simplify right side
    60,486.10x = 3,360,653,406.96
  5. Step 5: Solve for x
    x = 3,360,653,406.96/60,486.10
  6. Step 6: Final answer
    x = 55,560.76

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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.