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Finding the Fourth Proportional to 122,625.59, 169,224.42 and 74,228.63

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Solution

The fourth proportional to 122,625.59, 169,224.42 and 74,228.63 is: 102,436.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,625.59 : 169,224.42 = 74,228.63 : x
  2. Step 2: Convert to fraction form
    122,625.59/169,224.42 = 74,228.63/x
  3. Step 3: Cross multiply
    122,625.59x = 169,224.42 × 74,228.63
  4. Step 4: Simplify right side
    122,625.59x = 12,561,296,291.38
  5. Step 5: Solve for x
    x = 12,561,296,291.38/122,625.59
  6. Step 6: Final answer
    x = 102,436.18

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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.