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Finding the Fourth Proportional to 224,339.70, 336,436.76 and 74,539.77

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Solution

The fourth proportional to 224,339.70, 336,436.76 and 74,539.77 is: 111,785.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,339.70 : 336,436.76 = 74,539.77 : x
  2. Step 2: Convert to fraction form
    224,339.70/336,436.76 = 74,539.77/x
  3. Step 3: Cross multiply
    224,339.70x = 336,436.76 × 74,539.77
  4. Step 4: Simplify right side
    224,339.70x = 25,077,918,337.25
  5. Step 5: Solve for x
    x = 25,077,918,337.25/224,339.70
  6. Step 6: Final answer
    x = 111,785.47

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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.