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Finding the Fourth Proportional to 91,093, 136,710.06 and 63,208.84

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Solution

The fourth proportional to 91,093, 136,710.06 and 63,208.84 is: 94,862.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,093 : 136,710.06 = 63,208.84 : x
  2. Step 2: Convert to fraction form
    91,093/136,710.06 = 63,208.84/x
  3. Step 3: Cross multiply
    91,093x = 136,710.06 × 63,208.84
  4. Step 4: Simplify right side
    91,093x = 8,641,284,308.93
  5. Step 5: Solve for x
    x = 8,641,284,308.93/91,093
  6. Step 6: Final answer
    x = 94,862.22

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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.