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Finding the Fourth Proportional to 122,559.88, 169,126.14 and 68,847.16

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Solution

The fourth proportional to 122,559.88, 169,126.14 and 68,847.16 is: 95,005.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,559.88 : 169,126.14 = 68,847.16 : x
  2. Step 2: Convert to fraction form
    122,559.88/169,126.14 = 68,847.16/x
  3. Step 3: Cross multiply
    122,559.88x = 169,126.14 × 68,847.16
  4. Step 4: Simplify right side
    122,559.88x = 11,643,854,420.76
  5. Step 5: Solve for x
    x = 11,643,854,420.76/122,559.88
  6. Step 6: Final answer
    x = 95,005.43

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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.