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Finding the Fourth Proportional to 99,048.81, 148,595.09 and 36,719.31

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Solution

The fourth proportional to 99,048.81, 148,595.09 and 36,719.31 is: 55,087.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,048.81 : 148,595.09 = 36,719.31 : x
  2. Step 2: Convert to fraction form
    99,048.81/148,595.09 = 36,719.31/x
  3. Step 3: Cross multiply
    99,048.81x = 148,595.09 × 36,719.31
  4. Step 4: Simplify right side
    99,048.81x = 5,456,309,174.19
  5. Step 5: Solve for x
    x = 5,456,309,174.19/99,048.81
  6. Step 6: Final answer
    x = 55,087.07

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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.