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Finding the Fourth Proportional to 250,114.93, 375,211.65 and 81,596.38

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Solution

The fourth proportional to 250,114.93, 375,211.65 and 81,596.38 is: 122,407.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,114.93 : 375,211.65 = 81,596.38 : x
  2. Step 2: Convert to fraction form
    250,114.93/375,211.65 = 81,596.38/x
  3. Step 3: Cross multiply
    250,114.93x = 375,211.65 × 81,596.38
  4. Step 4: Simplify right side
    250,114.93x = 30,615,912,373.83
  5. Step 5: Solve for x
    x = 30,615,912,373.83/250,114.93
  6. Step 6: Final answer
    x = 122,407.38

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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.