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Finding the Fourth Proportional to 216,929.61, 325,354.32 and 67,141.98

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Solution

The fourth proportional to 216,929.61, 325,354.32 and 67,141.98 is: 100,700.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,929.61 : 325,354.32 = 67,141.98 : x
  2. Step 2: Convert to fraction form
    216,929.61/325,354.32 = 67,141.98/x
  3. Step 3: Cross multiply
    216,929.61x = 325,354.32 × 67,141.98
  4. Step 4: Simplify right side
    216,929.61x = 21,844,933,246.35
  5. Step 5: Solve for x
    x = 21,844,933,246.35/216,929.61
  6. Step 6: Final answer
    x = 100,700.56

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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.