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Finding the Fourth Proportional to 84,993.16, 117,299.17 and 48,699.42

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Solution

The fourth proportional to 84,993.16, 117,299.17 and 48,699.42 is: 67,210.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,993.16 : 117,299.17 = 48,699.42 : x
  2. Step 2: Convert to fraction form
    84,993.16/117,299.17 = 48,699.42/x
  3. Step 3: Cross multiply
    84,993.16x = 117,299.17 × 48,699.42
  4. Step 4: Simplify right side
    84,993.16x = 5,712,401,487.00
  5. Step 5: Solve for x
    x = 5,712,401,487.00/84,993.16
  6. Step 6: Final answer
    x = 67,210.13

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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.