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Finding the Fourth Proportional to 223,138.50, 334,707.75 and 56,926.50

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Solution

The fourth proportional to 223,138.50, 334,707.75 and 56,926.50 is: 85,389.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,138.50 : 334,707.75 = 56,926.50 : x
  2. Step 2: Convert to fraction form
    223,138.50/334,707.75 = 56,926.50/x
  3. Step 3: Cross multiply
    223,138.50x = 334,707.75 × 56,926.50
  4. Step 4: Simplify right side
    223,138.50x = 19,053,740,730.38
  5. Step 5: Solve for x
    x = 19,053,740,730.38/223,138.50
  6. Step 6: Final answer
    x = 85,389.75

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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.