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Finding the Fourth Proportional to 79,922.40, 119,672.40 and 64,053.60

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Solution

The fourth proportional to 79,922.40, 119,672.40 and 64,053.60 is: 95,911.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,922.40 : 119,672.40 = 64,053.60 : x
  2. Step 2: Convert to fraction form
    79,922.40/119,672.40 = 64,053.60/x
  3. Step 3: Cross multiply
    79,922.40x = 119,672.40 × 64,053.60
  4. Step 4: Simplify right side
    79,922.40x = 7,665,448,040.64
  5. Step 5: Solve for x
    x = 7,665,448,040.64/79,922.40
  6. Step 6: Final answer
    x = 95,911.13

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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.