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Finding the Fourth Proportional to 107,318.63, 148,100.29 and 67,055.75

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Solution

The fourth proportional to 107,318.63, 148,100.29 and 67,055.75 is: 92,537.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,318.63 : 148,100.29 = 67,055.75 : x
  2. Step 2: Convert to fraction form
    107,318.63/148,100.29 = 67,055.75/x
  3. Step 3: Cross multiply
    107,318.63x = 148,100.29 × 67,055.75
  4. Step 4: Simplify right side
    107,318.63x = 9,930,976,021.17
  5. Step 5: Solve for x
    x = 9,930,976,021.17/107,318.63
  6. Step 6: Final answer
    x = 92,537.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.