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Finding the Fourth Proportional to 250,088.92, 375,203.63 and 100,434.31

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Solution

The fourth proportional to 250,088.92, 375,203.63 and 100,434.31 is: 150,679.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,088.92 : 375,203.63 = 100,434.31 : x
  2. Step 2: Convert to fraction form
    250,088.92/375,203.63 = 100,434.31/x
  3. Step 3: Cross multiply
    250,088.92x = 375,203.63 × 100,434.31
  4. Step 4: Simplify right side
    250,088.92x = 37,683,317,001.62
  5. Step 5: Solve for x
    x = 37,683,317,001.62/250,088.92
  6. Step 6: Final answer
    x = 150,679.68

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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.