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Finding the Fourth Proportional to 238,987.82, 358,535.74 and 79,063.38

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Solution

The fourth proportional to 238,987.82, 358,535.74 and 79,063.38 is: 118,612.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,987.82 : 358,535.74 = 79,063.38 : x
  2. Step 2: Convert to fraction form
    238,987.82/358,535.74 = 79,063.38/x
  3. Step 3: Cross multiply
    238,987.82x = 358,535.74 × 79,063.38
  4. Step 4: Simplify right side
    238,987.82x = 28,347,047,455.20
  5. Step 5: Solve for x
    x = 28,347,047,455.20/238,987.82
  6. Step 6: Final answer
    x = 118,612.94

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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.