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Finding the Fourth Proportional to 216,401.76, 298,159.20 and 161,724.96

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Solution

The fourth proportional to 216,401.76, 298,159.20 and 161,724.96 is: 222,825.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,401.76 : 298,159.20 = 161,724.96 : x
  2. Step 2: Convert to fraction form
    216,401.76/298,159.20 = 161,724.96/x
  3. Step 3: Cross multiply
    216,401.76x = 298,159.20 × 161,724.96
  4. Step 4: Simplify right side
    216,401.76x = 48,219,784,693.63
  5. Step 5: Solve for x
    x = 48,219,784,693.63/216,401.76
  6. Step 6: Final answer
    x = 222,825.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.