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Finding the Fourth Proportional to 79,569.29, 109,801.54 and 43,758.38

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Solution

The fourth proportional to 79,569.29, 109,801.54 and 43,758.38 is: 60,384.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,569.29 : 109,801.54 = 43,758.38 : x
  2. Step 2: Convert to fraction form
    79,569.29/109,801.54 = 43,758.38/x
  3. Step 3: Cross multiply
    79,569.29x = 109,801.54 × 43,758.38
  4. Step 4: Simplify right side
    79,569.29x = 4,804,737,841.11
  5. Step 5: Solve for x
    x = 4,804,737,841.11/79,569.29
  6. Step 6: Final answer
    x = 60,384.32

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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.