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Finding the Fourth Proportional to 223,138.76, 334,708.12 and 56,926.76

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Solution

The fourth proportional to 223,138.76, 334,708.12 and 56,926.76 is: 85,390.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,138.76 : 334,708.12 = 56,926.76 : x
  2. Step 2: Convert to fraction form
    223,138.76/334,708.12 = 56,926.76/x
  3. Step 3: Cross multiply
    223,138.76x = 334,708.12 × 56,926.76
  4. Step 4: Simplify right side
    223,138.76x = 19,053,848,817.29
  5. Step 5: Solve for x
    x = 19,053,848,817.29/223,138.76
  6. Step 6: Final answer
    x = 85,390.13

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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.