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Finding the Fourth Proportional to 101,772.76, 140,515.68 and 63,547.24

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Solution

The fourth proportional to 101,772.76, 140,515.68 and 63,547.24 is: 87,738.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,772.76 : 140,515.68 = 63,547.24 : x
  2. Step 2: Convert to fraction form
    101,772.76/140,515.68 = 63,547.24/x
  3. Step 3: Cross multiply
    101,772.76x = 140,515.68 × 63,547.24
  4. Step 4: Simplify right side
    101,772.76x = 8,929,383,640.72
  5. Step 5: Solve for x
    x = 8,929,383,640.72/101,772.76
  6. Step 6: Final answer
    x = 87,738.44

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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.