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Finding the Fourth Proportional to 201,915.87, 303,014.34 and 83,587.83

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Solution

The fourth proportional to 201,915.87, 303,014.34 and 83,587.83 is: 125,439.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,915.87 : 303,014.34 = 83,587.83 : x
  2. Step 2: Convert to fraction form
    201,915.87/303,014.34 = 83,587.83/x
  3. Step 3: Cross multiply
    201,915.87x = 303,014.34 × 83,587.83
  4. Step 4: Simplify right side
    201,915.87x = 25,328,311,139.48
  5. Step 5: Solve for x
    x = 25,328,311,139.48/201,915.87
  6. Step 6: Final answer
    x = 125,439.92

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1.5x scale

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.