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Finding the Fourth Proportional to 117,519.16, 176,103.72 and 64,943.68

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Solution

The fourth proportional to 117,519.16, 176,103.72 and 64,943.68 is: 97,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,519.16 : 176,103.72 = 64,943.68 : x
  2. Step 2: Convert to fraction form
    117,519.16/176,103.72 = 64,943.68/x
  3. Step 3: Cross multiply
    117,519.16x = 176,103.72 × 64,943.68
  4. Step 4: Simplify right side
    117,519.16x = 11,436,823,638.49
  5. Step 5: Solve for x
    x = 11,436,823,638.49/117,519.16
  6. Step 6: Final answer
    x = 97,318.80

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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.