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Finding the Fourth Proportional to 68,503.48, 102,593.40 and 47,364.82

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Solution

The fourth proportional to 68,503.48, 102,593.40 and 47,364.82 is: 70,935.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,503.48 : 102,593.40 = 47,364.82 : x
  2. Step 2: Convert to fraction form
    68,503.48/102,593.40 = 47,364.82/x
  3. Step 3: Cross multiply
    68,503.48x = 102,593.40 × 47,364.82
  4. Step 4: Simplify right side
    68,503.48x = 4,859,317,924.19
  5. Step 5: Solve for x
    x = 4,859,317,924.19/68,503.48
  6. Step 6: Final answer
    x = 70,935.34

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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.