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Finding the Fourth Proportional to 372,792.15, 514,467.73 and 211,662.19

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Solution

The fourth proportional to 372,792.15, 514,467.73 and 211,662.19 is: 292,102.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,792.15 : 514,467.73 = 211,662.19 : x
  2. Step 2: Convert to fraction form
    372,792.15/514,467.73 = 211,662.19/x
  3. Step 3: Cross multiply
    372,792.15x = 514,467.73 × 211,662.19
  4. Step 4: Simplify right side
    372,792.15x = 108,893,364,600.80
  5. Step 5: Solve for x
    x = 108,893,364,600.80/372,792.15
  6. Step 6: Final answer
    x = 292,102.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.