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Finding the Fourth Proportional to 201,247.80, 302,066.10 and 122,515.80

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Solution

The fourth proportional to 201,247.80, 302,066.10 and 122,515.80 is: 183,892.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,247.80 : 302,066.10 = 122,515.80 : x
  2. Step 2: Convert to fraction form
    201,247.80/302,066.10 = 122,515.80/x
  3. Step 3: Cross multiply
    201,247.80x = 302,066.10 × 122,515.80
  4. Step 4: Simplify right side
    201,247.80x = 37,007,869,894.38
  5. Step 5: Solve for x
    x = 37,007,869,894.38/201,247.80
  6. Step 6: Final answer
    x = 183,892.05

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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.