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Finding the Fourth Proportional to 79,569.98, 109,804.47 and 43,270.40

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Solution

The fourth proportional to 79,569.98, 109,804.47 and 43,270.40 is: 59,712.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,569.98 : 109,804.47 = 43,270.40 : x
  2. Step 2: Convert to fraction form
    79,569.98/109,804.47 = 43,270.40/x
  3. Step 3: Cross multiply
    79,569.98x = 109,804.47 × 43,270.40
  4. Step 4: Simplify right side
    79,569.98x = 4,751,283,338.69
  5. Step 5: Solve for x
    x = 4,751,283,338.69/79,569.98
  6. Step 6: Final answer
    x = 59,712.01

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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.