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Finding the Fourth Proportional to 79,564.74, 109,802.16 and 43,757.52

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Solution

The fourth proportional to 79,564.74, 109,802.16 and 43,757.52 is: 60,386.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,564.74 : 109,802.16 = 43,757.52 : x
  2. Step 2: Convert to fraction form
    79,564.74/109,802.16 = 43,757.52/x
  3. Step 3: Cross multiply
    79,564.74x = 109,802.16 × 43,757.52
  4. Step 4: Simplify right side
    79,564.74x = 4,804,670,212.24
  5. Step 5: Solve for x
    x = 4,804,670,212.24/79,564.74
  6. Step 6: Final answer
    x = 60,386.93

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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.