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Finding the Fourth Proportional to 158,851.74, 238,207.59 and 74,635.86

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Solution

The fourth proportional to 158,851.74, 238,207.59 and 74,635.86 is: 111,920.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,851.74 : 238,207.59 = 74,635.86 : x
  2. Step 2: Convert to fraction form
    158,851.74/238,207.59 = 74,635.86/x
  3. Step 3: Cross multiply
    158,851.74x = 238,207.59 × 74,635.86
  4. Step 4: Simplify right side
    158,851.74x = 17,778,828,338.18
  5. Step 5: Solve for x
    x = 17,778,828,338.18/158,851.74
  6. Step 6: Final answer
    x = 111,920.89

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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.