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Finding the Fourth Proportional to 372,572.91, 514,217.71 and 219,602.17

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Solution

The fourth proportional to 372,572.91, 514,217.71 and 219,602.17 is: 303,090.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,572.91 : 514,217.71 = 219,602.17 : x
  2. Step 2: Convert to fraction form
    372,572.91/514,217.71 = 219,602.17/x
  3. Step 3: Cross multiply
    372,572.91x = 514,217.71 × 219,602.17
  4. Step 4: Simplify right side
    372,572.91x = 112,923,323,682.89
  5. Step 5: Solve for x
    x = 112,923,323,682.89/372,572.91
  6. Step 6: Final answer
    x = 303,090.54

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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.