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Finding the Fourth Proportional to 123,648.90, 170,635.68 and 67,060.32

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Solution

The fourth proportional to 123,648.90, 170,635.68 and 67,060.32 is: 92,543.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,648.90 : 170,635.68 = 67,060.32 : x
  2. Step 2: Convert to fraction form
    123,648.90/170,635.68 = 67,060.32/x
  3. Step 3: Cross multiply
    123,648.90x = 170,635.68 × 67,060.32
  4. Step 4: Simplify right side
    123,648.90x = 11,442,883,304.22
  5. Step 5: Solve for x
    x = 11,442,883,304.22/123,648.90
  6. Step 6: Final answer
    x = 92,543.35

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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.