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Finding the Fourth Proportional to 173,118.74, 238,907.88 and 108,590.70

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Solution

The fourth proportional to 173,118.74, 238,907.88 and 108,590.70 is: 149,857.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,118.74 : 238,907.88 = 108,590.70 : x
  2. Step 2: Convert to fraction form
    173,118.74/238,907.88 = 108,590.70/x
  3. Step 3: Cross multiply
    173,118.74x = 238,907.88 × 108,590.70
  4. Step 4: Simplify right side
    173,118.74x = 25,943,174,148.69
  5. Step 5: Solve for x
    x = 25,943,174,148.69/173,118.74
  6. Step 6: Final answer
    x = 149,857.69

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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.