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Finding the Fourth Proportional to 116,915.82, 161,343.84 and 63,200.66

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Solution

The fourth proportional to 116,915.82, 161,343.84 and 63,200.66 is: 87,216.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,915.82 : 161,343.84 = 63,200.66 : x
  2. Step 2: Convert to fraction form
    116,915.82/161,343.84 = 63,200.66/x
  3. Step 3: Cross multiply
    116,915.82x = 161,343.84 × 63,200.66
  4. Step 4: Simplify right side
    116,915.82x = 10,197,037,174.93
  5. Step 5: Solve for x
    x = 10,197,037,174.93/116,915.82
  6. Step 6: Final answer
    x = 87,216.92

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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.