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Finding the Fourth Proportional to 219,251.96, 328,926.62 and 69,501.20

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Solution

The fourth proportional to 219,251.96, 328,926.62 and 69,501.20 is: 104,267.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,251.96 : 328,926.62 = 69,501.20 : x
  2. Step 2: Convert to fraction form
    219,251.96/328,926.62 = 69,501.20/x
  3. Step 3: Cross multiply
    219,251.96x = 328,926.62 × 69,501.20
  4. Step 4: Simplify right side
    219,251.96x = 22,860,794,801.94
  5. Step 5: Solve for x
    x = 22,860,794,801.94/219,251.96
  6. Step 6: Final answer
    x = 104,267.23

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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.