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Finding the Fourth Proportional to 91,101.94, 136,657.08 and 27,917.50

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Solution

The fourth proportional to 91,101.94, 136,657.08 and 27,917.50 is: 41,877.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,101.94 : 136,657.08 = 27,917.50 : x
  2. Step 2: Convert to fraction form
    91,101.94/136,657.08 = 27,917.50/x
  3. Step 3: Cross multiply
    91,101.94x = 136,657.08 × 27,917.50
  4. Step 4: Simplify right side
    91,101.94x = 3,815,124,030.90
  5. Step 5: Solve for x
    x = 3,815,124,030.90/91,101.94
  6. Step 6: Final answer
    x = 41,877.53

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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.