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Finding the Fourth Proportional to 221,915.28, 332,859.92 and 64,140.24

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Solution

The fourth proportional to 221,915.28, 332,859.92 and 64,140.24 is: 96,206.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,915.28 : 332,859.92 = 64,140.24 : x
  2. Step 2: Convert to fraction form
    221,915.28/332,859.92 = 64,140.24/x
  3. Step 3: Cross multiply
    221,915.28x = 332,859.92 × 64,140.24
  4. Step 4: Simplify right side
    221,915.28x = 21,349,715,155.18
  5. Step 5: Solve for x
    x = 21,349,715,155.18/221,915.28
  6. Step 6: Final answer
    x = 96,206.60

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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.