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Finding the Fourth Proportional to 250,613.78, 375,990.06 and 115,719.02

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Solution

The fourth proportional to 250,613.78, 375,990.06 and 115,719.02 is: 173,610.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,613.78 : 375,990.06 = 115,719.02 : x
  2. Step 2: Convert to fraction form
    250,613.78/375,990.06 = 115,719.02/x
  3. Step 3: Cross multiply
    250,613.78x = 375,990.06 × 115,719.02
  4. Step 4: Simplify right side
    250,613.78x = 43,509,201,272.94
  5. Step 5: Solve for x
    x = 43,509,201,272.94/250,613.78
  6. Step 6: Final answer
    x = 173,610.57

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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.