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Finding the Fourth Proportional to 216,960.46, 325,318.82 and 148,649.11

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Solution

The fourth proportional to 216,960.46, 325,318.82 and 148,649.11 is: 222,890.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,960.46 : 325,318.82 = 148,649.11 : x
  2. Step 2: Convert to fraction form
    216,960.46/325,318.82 = 148,649.11/x
  3. Step 3: Cross multiply
    216,960.46x = 325,318.82 × 148,649.11
  4. Step 4: Simplify right side
    216,960.46x = 48,358,351,502.71
  5. Step 5: Solve for x
    x = 48,358,351,502.71/216,960.46
  6. Step 6: Final answer
    x = 222,890.16

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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.