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Finding the Fourth Proportional to 85,992.74, 118,667.68 and 47,751.29

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Solution

The fourth proportional to 85,992.74, 118,667.68 and 47,751.29 is: 65,895.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,992.74 : 118,667.68 = 47,751.29 : x
  2. Step 2: Convert to fraction form
    85,992.74/118,667.68 = 47,751.29/x
  3. Step 3: Cross multiply
    85,992.74x = 118,667.68 × 47,751.29
  4. Step 4: Simplify right side
    85,992.74x = 5,666,534,801.31
  5. Step 5: Solve for x
    x = 5,666,534,801.31/85,992.74
  6. Step 6: Final answer
    x = 65,895.50

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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.