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Finding the Fourth Proportional to 159,719.10, 239,578.65 and 146,816.70

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Solution

The fourth proportional to 159,719.10, 239,578.65 and 146,816.70 is: 220,225.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,719.10 : 239,578.65 = 146,816.70 : x
  2. Step 2: Convert to fraction form
    159,719.10/239,578.65 = 146,816.70/x
  3. Step 3: Cross multiply
    159,719.10x = 239,578.65 × 146,816.70
  4. Step 4: Simplify right side
    159,719.10x = 35,174,146,783.46
  5. Step 5: Solve for x
    x = 35,174,146,783.46/159,719.10
  6. Step 6: Final answer
    x = 220,225.05

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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.