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Finding the Fourth Proportional to 104,667.87, 157,001.87 and 45,471.25

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Solution

The fourth proportional to 104,667.87, 157,001.87 and 45,471.25 is: 68,206.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,667.87 : 157,001.87 = 45,471.25 : x
  2. Step 2: Convert to fraction form
    104,667.87/157,001.87 = 45,471.25/x
  3. Step 3: Cross multiply
    104,667.87x = 157,001.87 × 45,471.25
  4. Step 4: Simplify right side
    104,667.87x = 7,139,071,281.24
  5. Step 5: Solve for x
    x = 7,139,071,281.24/104,667.87
  6. Step 6: Final answer
    x = 68,206.90

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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.