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Finding the Fourth Proportional to 338,197.74, 507,304.80 and 113,565.51

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Solution

The fourth proportional to 338,197.74, 507,304.80 and 113,565.51 is: 170,351.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,197.74 : 507,304.80 = 113,565.51 : x
  2. Step 2: Convert to fraction form
    338,197.74/507,304.80 = 113,565.51/x
  3. Step 3: Cross multiply
    338,197.74x = 507,304.80 × 113,565.51
  4. Step 4: Simplify right side
    338,197.74x = 57,612,328,337.45
  5. Step 5: Solve for x
    x = 57,612,328,337.45/338,197.74
  6. Step 6: Final answer
    x = 170,351.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.