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Finding the Fourth Proportional to 374,499.75, 516,772.51 and 213,345.19

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Solution

The fourth proportional to 374,499.75, 516,772.51 and 213,345.19 is: 294,395.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,499.75 : 516,772.51 = 213,345.19 : x
  2. Step 2: Convert to fraction form
    374,499.75/516,772.51 = 213,345.19/x
  3. Step 3: Cross multiply
    374,499.75x = 516,772.51 × 213,345.19
  4. Step 4: Simplify right side
    374,499.75x = 110,250,929,332.73
  5. Step 5: Solve for x
    x = 110,250,929,332.73/374,499.75
  6. Step 6: Final answer
    x = 294,395.20

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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.