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Finding the Fourth Proportional to 215,048.60, 322,796.98 and 210,224

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Solution

The fourth proportional to 215,048.60, 322,796.98 and 210,224 is: 315,555.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,048.60 : 322,796.98 = 210,224 : x
  2. Step 2: Convert to fraction form
    215,048.60/322,796.98 = 210,224/x
  3. Step 3: Cross multiply
    215,048.60x = 322,796.98 × 210,224
  4. Step 4: Simplify right side
    215,048.60x = 67,859,672,323.52
  5. Step 5: Solve for x
    x = 67,859,672,323.52/215,048.60
  6. Step 6: Final answer
    x = 315,555.05

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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.