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Finding the Fourth Proportional to 85,048.34, 117,364.31 and 49,238.94

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Solution

The fourth proportional to 85,048.34, 117,364.31 and 49,238.94 is: 67,948.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,048.34 : 117,364.31 = 49,238.94 : x
  2. Step 2: Convert to fraction form
    85,048.34/117,364.31 = 49,238.94/x
  3. Step 3: Cross multiply
    85,048.34x = 117,364.31 × 49,238.94
  4. Step 4: Simplify right side
    85,048.34x = 5,778,893,972.04
  5. Step 5: Solve for x
    x = 5,778,893,972.04/85,048.34
  6. Step 6: Final answer
    x = 67,948.35

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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.