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Finding the Fourth Proportional to 374,133.90, 516,474.60 and 238,354.02

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Solution

The fourth proportional to 374,133.90, 516,474.60 and 238,354.02 is: 329,036.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,133.90 : 516,474.60 = 238,354.02 : x
  2. Step 2: Convert to fraction form
    374,133.90/516,474.60 = 238,354.02/x
  3. Step 3: Cross multiply
    374,133.90x = 516,474.60 × 238,354.02
  4. Step 4: Simplify right side
    374,133.90x = 123,103,797,137.89
  5. Step 5: Solve for x
    x = 123,103,797,137.89/374,133.90
  6. Step 6: Final answer
    x = 329,036.74

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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.