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Finding the Fourth Proportional to 79,296.51, 109,430.73 and 43,484.43

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Solution

The fourth proportional to 79,296.51, 109,430.73 and 43,484.43 is: 60,009.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,296.51 : 109,430.73 = 43,484.43 : x
  2. Step 2: Convert to fraction form
    79,296.51/109,430.73 = 43,484.43/x
  3. Step 3: Cross multiply
    79,296.51x = 109,430.73 × 43,484.43
  4. Step 4: Simplify right side
    79,296.51x = 4,758,532,918.53
  5. Step 5: Solve for x
    x = 4,758,532,918.53/79,296.51
  6. Step 6: Final answer
    x = 60,009.36

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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.