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Finding the Fourth Proportional to 79,681.60, 119,494.86 and 35,339.37

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Solution

The fourth proportional to 79,681.60, 119,494.86 and 35,339.37 is: 52,996.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,681.60 : 119,494.86 = 35,339.37 : x
  2. Step 2: Convert to fraction form
    79,681.60/119,494.86 = 35,339.37/x
  3. Step 3: Cross multiply
    79,681.60x = 119,494.86 × 35,339.37
  4. Step 4: Simplify right side
    79,681.60x = 4,222,873,070.64
  5. Step 5: Solve for x
    x = 4,222,873,070.64/79,681.60
  6. Step 6: Final answer
    x = 52,996.84

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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.