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Finding the Fourth Proportional to 104,898.87, 144,814.05 and 71,086.01

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Solution

The fourth proportional to 104,898.87, 144,814.05 and 71,086.01 is: 98,135.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,898.87 : 144,814.05 = 71,086.01 : x
  2. Step 2: Convert to fraction form
    104,898.87/144,814.05 = 71,086.01/x
  3. Step 3: Cross multiply
    104,898.87x = 144,814.05 × 71,086.01
  4. Step 4: Simplify right side
    104,898.87x = 10,294,252,282.37
  5. Step 5: Solve for x
    x = 10,294,252,282.37/104,898.87
  6. Step 6: Final answer
    x = 98,135.02

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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.