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Finding the Fourth Proportional to 79,316.88, 118,813.32 and 44,275.20

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Solution

The fourth proportional to 79,316.88, 118,813.32 and 44,275.20 is: 66,322.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,316.88 : 118,813.32 = 44,275.20 : x
  2. Step 2: Convert to fraction form
    79,316.88/118,813.32 = 44,275.20/x
  3. Step 3: Cross multiply
    79,316.88x = 118,813.32 × 44,275.20
  4. Step 4: Simplify right side
    79,316.88x = 5,260,483,505.66
  5. Step 5: Solve for x
    x = 5,260,483,505.66/79,316.88
  6. Step 6: Final answer
    x = 66,322.37

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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.