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Finding the Fourth Proportional to 148,097.87, 204,376.05 and 90,737.30

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Solution

The fourth proportional to 148,097.87, 204,376.05 and 90,737.30 is: 125,218.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,097.87 : 204,376.05 = 90,737.30 : x
  2. Step 2: Convert to fraction form
    148,097.87/204,376.05 = 90,737.30/x
  3. Step 3: Cross multiply
    148,097.87x = 204,376.05 × 90,737.30
  4. Step 4: Simplify right side
    148,097.87x = 18,544,529,939.78
  5. Step 5: Solve for x
    x = 18,544,529,939.78/148,097.87
  6. Step 6: Final answer
    x = 125,218.08

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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.