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Finding the Fourth Proportional to 173,169.55, 238,971.62 and 96,689.82

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Solution

The fourth proportional to 173,169.55, 238,971.62 and 96,689.82 is: 133,430.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,169.55 : 238,971.62 = 96,689.82 : x
  2. Step 2: Convert to fraction form
    173,169.55/238,971.62 = 96,689.82/x
  3. Step 3: Cross multiply
    173,169.55x = 238,971.62 × 96,689.82
  4. Step 4: Simplify right side
    173,169.55x = 23,106,122,439.46
  5. Step 5: Solve for x
    x = 23,106,122,439.46/173,169.55
  6. Step 6: Final answer
    x = 133,430.64

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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.