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Finding the Fourth Proportional to 85,988.52, 118,665.27 and 47,748.96

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Solution

The fourth proportional to 85,988.52, 118,665.27 and 47,748.96 is: 65,894.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,988.52 : 118,665.27 = 47,748.96 : x
  2. Step 2: Convert to fraction form
    85,988.52/118,665.27 = 47,748.96/x
  3. Step 3: Cross multiply
    85,988.52x = 118,665.27 × 47,748.96
  4. Step 4: Simplify right side
    85,988.52x = 5,666,143,230.62
  5. Step 5: Solve for x
    x = 5,666,143,230.62/85,988.52
  6. Step 6: Final answer
    x = 65,894.18

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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.