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Finding the Fourth Proportional to 82,667.36, 124,007.45 and 25,734.11

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Solution

The fourth proportional to 82,667.36, 124,007.45 and 25,734.11 is: 38,603.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,667.36 : 124,007.45 = 25,734.11 : x
  2. Step 2: Convert to fraction form
    82,667.36/124,007.45 = 25,734.11/x
  3. Step 3: Cross multiply
    82,667.36x = 124,007.45 × 25,734.11
  4. Step 4: Simplify right side
    82,667.36x = 3,191,221,636.97
  5. Step 5: Solve for x
    x = 3,191,221,636.97/82,667.36
  6. Step 6: Final answer
    x = 38,603.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.