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Finding the Fourth Proportional to 216,572.66, 324,792.78 and 76,298.48

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Solution

The fourth proportional to 216,572.66, 324,792.78 and 76,298.48 is: 114,424.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,572.66 : 324,792.78 = 76,298.48 : x
  2. Step 2: Convert to fraction form
    216,572.66/324,792.78 = 76,298.48/x
  3. Step 3: Cross multiply
    216,572.66x = 324,792.78 × 76,298.48
  4. Step 4: Simplify right side
    216,572.66x = 24,781,196,778.41
  5. Step 5: Solve for x
    x = 24,781,196,778.41/216,572.66
  6. Step 6: Final answer
    x = 114,424.40

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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.