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Finding the Fourth Proportional to 107,364.71, 161,065.92 and 40,810.65

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Solution

The fourth proportional to 107,364.71, 161,065.92 and 40,810.65 is: 61,223.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,364.71 : 161,065.92 = 40,810.65 : x
  2. Step 2: Convert to fraction form
    107,364.71/161,065.92 = 40,810.65/x
  3. Step 3: Cross multiply
    107,364.71x = 161,065.92 × 40,810.65
  4. Step 4: Simplify right side
    107,364.71x = 6,573,204,888.05
  5. Step 5: Solve for x
    x = 6,573,204,888.05/107,364.71
  6. Step 6: Final answer
    x = 61,223.14

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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.