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Finding the Fourth Proportional to 143,871.66, 198,593.46 and 94,817.16

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Solution

The fourth proportional to 143,871.66, 198,593.46 and 94,817.16 is: 130,881.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,871.66 : 198,593.46 = 94,817.16 : x
  2. Step 2: Convert to fraction form
    143,871.66/198,593.46 = 94,817.16/x
  3. Step 3: Cross multiply
    143,871.66x = 198,593.46 × 94,817.16
  4. Step 4: Simplify right side
    143,871.66x = 18,830,067,871.77
  5. Step 5: Solve for x
    x = 18,830,067,871.77/143,871.66
  6. Step 6: Final answer
    x = 130,881.01

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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.