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Finding the Fourth Proportional to 123,697.26, 170,702.54 and 67,108.63

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Solution

The fourth proportional to 123,697.26, 170,702.54 and 67,108.63 is: 92,610.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,697.26 : 170,702.54 = 67,108.63 : x
  2. Step 2: Convert to fraction form
    123,697.26/170,702.54 = 67,108.63/x
  3. Step 3: Cross multiply
    123,697.26x = 170,702.54 × 67,108.63
  4. Step 4: Simplify right side
    123,697.26x = 11,455,613,596.92
  5. Step 5: Solve for x
    x = 11,455,613,596.92/123,697.26
  6. Step 6: Final answer
    x = 92,610.08

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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.