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Finding the Fourth Proportional to 105,099.25, 144,987 and 62,049.91

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Solution

The fourth proportional to 105,099.25, 144,987 and 62,049.91 is: 85,599.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,099.25 : 144,987 = 62,049.91 : x
  2. Step 2: Convert to fraction form
    105,099.25/144,987 = 62,049.91/x
  3. Step 3: Cross multiply
    105,099.25x = 144,987 × 62,049.91
  4. Step 4: Simplify right side
    105,099.25x = 8,996,429,576.24
  5. Step 5: Solve for x
    x = 8,996,429,576.24/105,099.25
  6. Step 6: Final answer
    x = 85,599.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.