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Finding the Fourth Proportional to 427,273.93, 640,910.08 and 161,094.16

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Solution

The fourth proportional to 427,273.93, 640,910.08 and 161,094.16 is: 241,640.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,273.93 : 640,910.08 = 161,094.16 : x
  2. Step 2: Convert to fraction form
    427,273.93/640,910.08 = 161,094.16/x
  3. Step 3: Cross multiply
    427,273.93x = 640,910.08 × 161,094.16
  4. Step 4: Simplify right side
    427,273.93x = 103,246,870,973.13
  5. Step 5: Solve for x
    x = 103,246,870,973.13/427,273.93
  6. Step 6: Final answer
    x = 241,640.93

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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.