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Finding the Fourth Proportional to 159,345.40, 238,907.31 and 70,550.41

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Solution

The fourth proportional to 159,345.40, 238,907.31 and 70,550.41 is: 105,776.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,345.40 : 238,907.31 = 70,550.41 : x
  2. Step 2: Convert to fraction form
    159,345.40/238,907.31 = 70,550.41/x
  3. Step 3: Cross multiply
    159,345.40x = 238,907.31 × 70,550.41
  4. Step 4: Simplify right side
    159,345.40x = 16,855,008,672.50
  5. Step 5: Solve for x
    x = 16,855,008,672.50/159,345.40
  6. Step 6: Final answer
    x = 105,776.56

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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.