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Finding the Fourth Proportional to 230,993.50, 318,771.03 and 125,009.50

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Solution

The fourth proportional to 230,993.50, 318,771.03 and 125,009.50 is: 172,513.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,993.50 : 318,771.03 = 125,009.50 : x
  2. Step 2: Convert to fraction form
    230,993.50/318,771.03 = 125,009.50/x
  3. Step 3: Cross multiply
    230,993.50x = 318,771.03 × 125,009.50
  4. Step 4: Simplify right side
    230,993.50x = 39,849,407,074.79
  5. Step 5: Solve for x
    x = 39,849,407,074.79/230,993.50
  6. Step 6: Final answer
    x = 172,513.11

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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.