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Finding the Fourth Proportional to 143,543.97, 216,664.25 and 143,543.97

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Solution

The fourth proportional to 143,543.97, 216,664.25 and 143,543.97 is: 216,664.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,543.97 : 216,664.25 = 143,543.97 : x
  2. Step 2: Convert to fraction form
    143,543.97/216,664.25 = 143,543.97/x
  3. Step 3: Cross multiply
    143,543.97x = 216,664.25 × 143,543.97
  4. Step 4: Simplify right side
    143,543.97x = 31,100,845,884.35
  5. Step 5: Solve for x
    x = 31,100,845,884.35/143,543.97
  6. Step 6: Final answer
    x = 216,664.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.