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Finding the Fourth Proportional to 79,273.59, 109,393.37 and 45,275.39

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Solution

The fourth proportional to 79,273.59, 109,393.37 and 45,275.39 is: 62,477.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,273.59 : 109,393.37 = 45,275.39 : x
  2. Step 2: Convert to fraction form
    79,273.59/109,393.37 = 45,275.39/x
  3. Step 3: Cross multiply
    79,273.59x = 109,393.37 × 45,275.39
  4. Step 4: Simplify right side
    79,273.59x = 4,952,827,296.83
  5. Step 5: Solve for x
    x = 4,952,827,296.83/79,273.59
  6. Step 6: Final answer
    x = 62,477.65

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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.