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Finding the Fourth Proportional to 251,725.92, 377,588.42 and 74,357.48

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Solution

The fourth proportional to 251,725.92, 377,588.42 and 74,357.48 is: 111,536.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,725.92 : 377,588.42 = 74,357.48 : x
  2. Step 2: Convert to fraction form
    251,725.92/377,588.42 = 74,357.48/x
  3. Step 3: Cross multiply
    251,725.92x = 377,588.42 × 74,357.48
  4. Step 4: Simplify right side
    251,725.92x = 28,076,521,128.65
  5. Step 5: Solve for x
    x = 28,076,521,128.65/251,725.92
  6. Step 6: Final answer
    x = 111,536.08

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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.