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Finding the Fourth Proportional to 222,818.40, 334,436.40 and 117,712.80

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Solution

The fourth proportional to 222,818.40, 334,436.40 and 117,712.80 is: 176,679.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,818.40 : 334,436.40 = 117,712.80 : x
  2. Step 2: Convert to fraction form
    222,818.40/334,436.40 = 117,712.80/x
  3. Step 3: Cross multiply
    222,818.40x = 334,436.40 × 117,712.80
  4. Step 4: Simplify right side
    222,818.40x = 39,367,445,065.92
  5. Step 5: Solve for x
    x = 39,367,445,065.92/222,818.40
  6. Step 6: Final answer
    x = 176,679.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.