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Finding the Fourth Proportional to 223,443.45, 334,976.85 and 96,988.41

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Solution

The fourth proportional to 223,443.45, 334,976.85 and 96,988.41 is: 145,400.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,443.45 : 334,976.85 = 96,988.41 : x
  2. Step 2: Convert to fraction form
    223,443.45/334,976.85 = 96,988.41/x
  3. Step 3: Cross multiply
    223,443.45x = 334,976.85 × 96,988.41
  4. Step 4: Simplify right side
    223,443.45x = 32,488,872,068.31
  5. Step 5: Solve for x
    x = 32,488,872,068.31/223,443.45
  6. Step 6: Final answer
    x = 145,400.87

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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.