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Finding the Fourth Proportional to 117,697.90, 162,424.16 and 63,983.02

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Solution

The fourth proportional to 117,697.90, 162,424.16 and 63,983.02 is: 88,297.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,697.90 : 162,424.16 = 63,983.02 : x
  2. Step 2: Convert to fraction form
    117,697.90/162,424.16 = 63,983.02/x
  3. Step 3: Cross multiply
    117,697.90x = 162,424.16 × 63,983.02
  4. Step 4: Simplify right side
    117,697.90x = 10,392,388,277.76
  5. Step 5: Solve for x
    x = 10,392,388,277.76/117,697.90
  6. Step 6: Final answer
    x = 88,297.14

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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.