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Finding the Fourth Proportional to 372,856.62, 514,554.93 and 211,706.31

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Solution

The fourth proportional to 372,856.62, 514,554.93 and 211,706.31 is: 292,161.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,856.62 : 514,554.93 = 211,706.31 : x
  2. Step 2: Convert to fraction form
    372,856.62/514,554.93 = 211,706.31/x
  3. Step 3: Cross multiply
    372,856.62x = 514,554.93 × 211,706.31
  4. Step 4: Simplify right side
    372,856.62x = 108,934,525,522.61
  5. Step 5: Solve for x
    x = 108,934,525,522.61/372,856.62
  6. Step 6: Final answer
    x = 292,161.97

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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.