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Finding the Fourth Proportional to 107,704.67, 148,619.54 and 62,376.36

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Solution

The fourth proportional to 107,704.67, 148,619.54 and 62,376.36 is: 86,071.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,704.67 : 148,619.54 = 62,376.36 : x
  2. Step 2: Convert to fraction form
    107,704.67/148,619.54 = 62,376.36/x
  3. Step 3: Cross multiply
    107,704.67x = 148,619.54 × 62,376.36
  4. Step 4: Simplify right side
    107,704.67x = 9,270,345,930.07
  5. Step 5: Solve for x
    x = 9,270,345,930.07/107,704.67
  6. Step 6: Final answer
    x = 86,071.90

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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.