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Finding the Fourth Proportional to 117,603.91, 162,293.52 and 63,888.90

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Solution

The fourth proportional to 117,603.91, 162,293.52 and 63,888.90 is: 88,166.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,603.91 : 162,293.52 = 63,888.90 : x
  2. Step 2: Convert to fraction form
    117,603.91/162,293.52 = 63,888.90/x
  3. Step 3: Cross multiply
    117,603.91x = 162,293.52 × 63,888.90
  4. Step 4: Simplify right side
    117,603.91x = 10,368,754,469.93
  5. Step 5: Solve for x
    x = 10,368,754,469.93/117,603.91
  6. Step 6: Final answer
    x = 88,166.75

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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.