Home / 351,410.74-527,116.09-85,171.25

Finding the Fourth Proportional to 351,410.74, 527,116.09 and 85,171.25

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Solution

The fourth proportional to 351,410.74, 527,116.09 and 85,171.25 is: 127,756.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,410.74 : 527,116.09 = 85,171.25 : x
  2. Step 2: Convert to fraction form
    351,410.74/527,116.09 = 85,171.25/x
  3. Step 3: Cross multiply
    351,410.74x = 527,116.09 × 85,171.25
  4. Step 4: Simplify right side
    351,410.74x = 44,895,136,280.41
  5. Step 5: Solve for x
    x = 44,895,136,280.41/351,410.74
  6. Step 6: Final answer
    x = 127,756.87

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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.