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Finding the Fourth Proportional to 103,666.52, 143,059.78 and 58,954.52

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Solution

The fourth proportional to 103,666.52, 143,059.78 and 58,954.52 is: 81,357.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,666.52 : 143,059.78 = 58,954.52 : x
  2. Step 2: Convert to fraction form
    103,666.52/143,059.78 = 58,954.52/x
  3. Step 3: Cross multiply
    103,666.52x = 143,059.78 × 58,954.52
  4. Step 4: Simplify right side
    103,666.52x = 8,434,020,661.21
  5. Step 5: Solve for x
    x = 8,434,020,661.21/103,666.52
  6. Step 6: Final answer
    x = 81,357.23

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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.