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Finding the Fourth Proportional to 161,795.71, 242,640.74 and 53,696.04

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Solution

The fourth proportional to 161,795.71, 242,640.74 and 53,696.04 is: 80,526.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,795.71 : 242,640.74 = 53,696.04 : x
  2. Step 2: Convert to fraction form
    161,795.71/242,640.74 = 53,696.04/x
  3. Step 3: Cross multiply
    161,795.71x = 242,640.74 × 53,696.04
  4. Step 4: Simplify right side
    161,795.71x = 13,028,846,105.01
  5. Step 5: Solve for x
    x = 13,028,846,105.01/161,795.71
  6. Step 6: Final answer
    x = 80,526.52

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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.