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Finding the Fourth Proportional to 122,994.18, 169,700.67 and 75,230.10

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Solution

The fourth proportional to 122,994.18, 169,700.67 and 75,230.10 is: 103,798.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,994.18 : 169,700.67 = 75,230.10 : x
  2. Step 2: Convert to fraction form
    122,994.18/169,700.67 = 75,230.10/x
  3. Step 3: Cross multiply
    122,994.18x = 169,700.67 × 75,230.10
  4. Step 4: Simplify right side
    122,994.18x = 12,766,598,374.17
  5. Step 5: Solve for x
    x = 12,766,598,374.17/122,994.18
  6. Step 6: Final answer
    x = 103,798.39

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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.