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Finding the Fourth Proportional to 374,500.25, 516,773.20 and 213,345.69

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Solution

The fourth proportional to 374,500.25, 516,773.20 and 213,345.69 is: 294,395.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,500.25 : 516,773.20 = 213,345.69 : x
  2. Step 2: Convert to fraction form
    374,500.25/516,773.20 = 213,345.69/x
  3. Step 3: Cross multiply
    374,500.25x = 516,773.20 × 213,345.69
  4. Step 4: Simplify right side
    374,500.25x = 110,251,334,927.51
  5. Step 5: Solve for x
    x = 110,251,334,927.51/374,500.25
  6. Step 6: Final answer
    x = 294,395.89

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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.