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Finding the Fourth Proportional to 374,343.75, 516,564.95 and 213,166.71

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Solution

The fourth proportional to 374,343.75, 516,564.95 and 213,166.71 is: 294,153.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,343.75 : 516,564.95 = 213,166.71 : x
  2. Step 2: Convert to fraction form
    374,343.75/516,564.95 = 213,166.71/x
  3. Step 3: Cross multiply
    374,343.75x = 516,564.95 × 213,166.71
  4. Step 4: Simplify right side
    374,343.75x = 110,114,449,826.98
  5. Step 5: Solve for x
    x = 110,114,449,826.98/374,343.75
  6. Step 6: Final answer
    x = 294,153.30

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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.