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Finding the Fourth Proportional to 123,852.70, 170,915.77 and 67,264.08

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Solution

The fourth proportional to 123,852.70, 170,915.77 and 67,264.08 is: 92,823.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,852.70 : 170,915.77 = 67,264.08 : x
  2. Step 2: Convert to fraction form
    123,852.70/170,915.77 = 67,264.08/x
  3. Step 3: Cross multiply
    123,852.70x = 170,915.77 × 67,264.08
  4. Step 4: Simplify right side
    123,852.70x = 11,496,490,835.64
  5. Step 5: Solve for x
    x = 11,496,490,835.64/123,852.70
  6. Step 6: Final answer
    x = 92,823.90

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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.