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Finding the Fourth Proportional to 117,872.51, 162,668.06 and 64,159.47

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Solution

The fourth proportional to 117,872.51, 162,668.06 and 64,159.47 is: 88,542.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,872.51 : 162,668.06 = 64,159.47 : x
  2. Step 2: Convert to fraction form
    117,872.51/162,668.06 = 64,159.47/x
  3. Step 3: Cross multiply
    117,872.51x = 162,668.06 × 64,159.47
  4. Step 4: Simplify right side
    117,872.51x = 10,436,696,194.73
  5. Step 5: Solve for x
    x = 10,436,696,194.73/117,872.51
  6. Step 6: Final answer
    x = 88,542.24

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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.