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Finding the Fourth Proportional to 117,696.65, 162,424.58 and 63,985.34

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Solution

The fourth proportional to 117,696.65, 162,424.58 and 63,985.34 is: 88,301.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,696.65 : 162,424.58 = 63,985.34 : x
  2. Step 2: Convert to fraction form
    117,696.65/162,424.58 = 63,985.34/x
  3. Step 3: Cross multiply
    117,696.65x = 162,424.58 × 63,985.34
  4. Step 4: Simplify right side
    117,696.65x = 10,392,792,061.79
  5. Step 5: Solve for x
    x = 10,392,792,061.79/117,696.65
  6. Step 6: Final answer
    x = 88,301.51

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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.