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Finding the Fourth Proportional to 159,491.40, 239,237.10 and 151,715.40

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Solution

The fourth proportional to 159,491.40, 239,237.10 and 151,715.40 is: 227,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,491.40 : 239,237.10 = 151,715.40 : x
  2. Step 2: Convert to fraction form
    159,491.40/239,237.10 = 151,715.40/x
  3. Step 3: Cross multiply
    159,491.40x = 239,237.10 × 151,715.40
  4. Step 4: Simplify right side
    159,491.40x = 36,295,952,321.34
  5. Step 5: Solve for x
    x = 36,295,952,321.34/159,491.40
  6. Step 6: Final answer
    x = 227,573.10

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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.