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Finding the Fourth Proportional to 79,079.60, 118,619.40 and 32,321.54

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Solution

The fourth proportional to 79,079.60, 118,619.40 and 32,321.54 is: 48,482.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,079.60 : 118,619.40 = 32,321.54 : x
  2. Step 2: Convert to fraction form
    79,079.60/118,619.40 = 32,321.54/x
  3. Step 3: Cross multiply
    79,079.60x = 118,619.40 × 32,321.54
  4. Step 4: Simplify right side
    79,079.60x = 3,833,961,681.88
  5. Step 5: Solve for x
    x = 3,833,961,681.88/79,079.60
  6. Step 6: Final answer
    x = 48,482.31

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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.