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Finding the Fourth Proportional to 167,915.88, 231,329.69 and 116,840.90

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Solution

The fourth proportional to 167,915.88, 231,329.69 and 116,840.90 is: 160,966.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,915.88 : 231,329.69 = 116,840.90 : x
  2. Step 2: Convert to fraction form
    167,915.88/231,329.69 = 116,840.90/x
  3. Step 3: Cross multiply
    167,915.88x = 231,329.69 × 116,840.90
  4. Step 4: Simplify right side
    167,915.88x = 27,028,767,435.47
  5. Step 5: Solve for x
    x = 27,028,767,435.47/167,915.88
  6. Step 6: Final answer
    x = 160,966.12

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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.