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Finding the Fourth Proportional to 117,463.80, 162,127.85 and 69,744.68

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Solution

The fourth proportional to 117,463.80, 162,127.85 and 69,744.68 is: 96,264.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,463.80 : 162,127.85 = 69,744.68 : x
  2. Step 2: Convert to fraction form
    117,463.80/162,127.85 = 69,744.68/x
  3. Step 3: Cross multiply
    117,463.80x = 162,127.85 × 69,744.68
  4. Step 4: Simplify right side
    117,463.80x = 11,307,553,857.98
  5. Step 5: Solve for x
    x = 11,307,553,857.98/117,463.80
  6. Step 6: Final answer
    x = 96,264.16

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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.