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Finding the Fourth Proportional to 108,805.71, 150,175.41 and 83,031.24

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Solution

The fourth proportional to 108,805.71, 150,175.41 and 83,031.24 is: 114,601.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,805.71 : 150,175.41 = 83,031.24 : x
  2. Step 2: Convert to fraction form
    108,805.71/150,175.41 = 83,031.24/x
  3. Step 3: Cross multiply
    108,805.71x = 150,175.41 × 83,031.24
  4. Step 4: Simplify right side
    108,805.71x = 12,469,250,509.81
  5. Step 5: Solve for x
    x = 12,469,250,509.81/108,805.71
  6. Step 6: Final answer
    x = 114,601.07

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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.