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Finding the Fourth Proportional to 201,957.40, 302,936.10 and 96,722.20

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Solution

The fourth proportional to 201,957.40, 302,936.10 and 96,722.20 is: 145,083.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,957.40 : 302,936.10 = 96,722.20 : x
  2. Step 2: Convert to fraction form
    201,957.40/302,936.10 = 96,722.20/x
  3. Step 3: Cross multiply
    201,957.40x = 302,936.10 × 96,722.20
  4. Step 4: Simplify right side
    201,957.40x = 29,300,646,051.42
  5. Step 5: Solve for x
    x = 29,300,646,051.42/201,957.40
  6. Step 6: Final answer
    x = 145,083.30

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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.