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Finding the Fourth Proportional to 121,026, 167,015.88 and 68,034

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Solution

The fourth proportional to 121,026, 167,015.88 and 68,034 is: 93,886.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,026 : 167,015.88 = 68,034 : x
  2. Step 2: Convert to fraction form
    121,026/167,015.88 = 68,034/x
  3. Step 3: Cross multiply
    121,026x = 167,015.88 × 68,034
  4. Step 4: Simplify right side
    121,026x = 11,362,758,379.92
  5. Step 5: Solve for x
    x = 11,362,758,379.92/121,026
  6. Step 6: Final answer
    x = 93,886.92

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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.