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Finding the Fourth Proportional to 117,977.92, 162,805.92 and 64,262.08

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Solution

The fourth proportional to 117,977.92, 162,805.92 and 64,262.08 is: 88,679.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,977.92 : 162,805.92 = 64,262.08 : x
  2. Step 2: Convert to fraction form
    117,977.92/162,805.92 = 64,262.08/x
  3. Step 3: Cross multiply
    117,977.92x = 162,805.92 × 64,262.08
  4. Step 4: Simplify right side
    117,977.92x = 10,462,247,055.51
  5. Step 5: Solve for x
    x = 10,462,247,055.51/117,977.92
  6. Step 6: Final answer
    x = 88,679.70

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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.