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Finding the Fourth Proportional to 159,665.54, 239,428.77 and 45,788.18

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Solution

The fourth proportional to 159,665.54, 239,428.77 and 45,788.18 is: 68,662.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,665.54 : 239,428.77 = 45,788.18 : x
  2. Step 2: Convert to fraction form
    159,665.54/239,428.77 = 45,788.18/x
  3. Step 3: Cross multiply
    159,665.54x = 239,428.77 × 45,788.18
  4. Step 4: Simplify right side
    159,665.54x = 10,963,007,617.94
  5. Step 5: Solve for x
    x = 10,963,007,617.94/159,665.54
  6. Step 6: Final answer
    x = 68,662.33

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1.5x scale

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.