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Finding the Fourth Proportional to 167,508.36, 251,262.72 and 78,696.72

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Solution

The fourth proportional to 167,508.36, 251,262.72 and 78,696.72 is: 118,045.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,508.36 : 251,262.72 = 78,696.72 : x
  2. Step 2: Convert to fraction form
    167,508.36/251,262.72 = 78,696.72/x
  3. Step 3: Cross multiply
    167,508.36x = 251,262.72 × 78,696.72
  4. Step 4: Simplify right side
    167,508.36x = 19,773,551,922.28
  5. Step 5: Solve for x
    x = 19,773,551,922.28/167,508.36
  6. Step 6: Final answer
    x = 118,045.16

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1.5x scale

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.