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Finding the Fourth Proportional to 250,791.51, 375,544.98 and 138,346.74

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Solution

The fourth proportional to 250,791.51, 375,544.98 and 138,346.74 is: 207,165.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,791.51 : 375,544.98 = 138,346.74 : x
  2. Step 2: Convert to fraction form
    250,791.51/375,544.98 = 138,346.74/x
  3. Step 3: Cross multiply
    250,791.51x = 375,544.98 × 138,346.74
  4. Step 4: Simplify right side
    250,791.51x = 51,955,423,706.37
  5. Step 5: Solve for x
    x = 51,955,423,706.37/250,791.51
  6. Step 6: Final answer
    x = 207,165.80

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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.