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Finding the Fourth Proportional to 111,916.88, 167,875.40 and 107,057.68

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Solution

The fourth proportional to 111,916.88, 167,875.40 and 107,057.68 is: 160,586.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,916.88 : 167,875.40 = 107,057.68 : x
  2. Step 2: Convert to fraction form
    111,916.88/167,875.40 = 107,057.68/x
  3. Step 3: Cross multiply
    111,916.88x = 167,875.40 × 107,057.68
  4. Step 4: Simplify right side
    111,916.88x = 17,972,350,853.07
  5. Step 5: Solve for x
    x = 17,972,350,853.07/111,916.88
  6. Step 6: Final answer
    x = 160,586.60

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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.