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Finding the Fourth Proportional to 239,565.90, 330,600.24 and 137,597.94

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Solution

The fourth proportional to 239,565.90, 330,600.24 and 137,597.94 is: 189,884.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,565.90 : 330,600.24 = 137,597.94 : x
  2. Step 2: Convert to fraction form
    239,565.90/330,600.24 = 137,597.94/x
  3. Step 3: Cross multiply
    239,565.90x = 330,600.24 × 137,597.94
  4. Step 4: Simplify right side
    239,565.90x = 45,489,911,987.51
  5. Step 5: Solve for x
    x = 45,489,911,987.51/239,565.90
  6. Step 6: Final answer
    x = 189,884.75

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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.