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Finding the Fourth Proportional to 372,888.36, 514,568.16 and 211,722.21

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Solution

The fourth proportional to 372,888.36, 514,568.16 and 211,722.21 is: 292,166.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,888.36 : 514,568.16 = 211,722.21 : x
  2. Step 2: Convert to fraction form
    372,888.36/514,568.16 = 211,722.21/x
  3. Step 3: Cross multiply
    372,888.36x = 514,568.16 × 211,722.21
  4. Step 4: Simplify right side
    372,888.36x = 108,945,508,030.83
  5. Step 5: Solve for x
    x = 108,945,508,030.83/372,888.36
  6. Step 6: Final answer
    x = 292,166.56

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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.