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Finding the Fourth Proportional to 201,496.20, 301,985.10 and 122,526.60

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Solution

The fourth proportional to 201,496.20, 301,985.10 and 122,526.60 is: 183,632.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,496.20 : 301,985.10 = 122,526.60 : x
  2. Step 2: Convert to fraction form
    201,496.20/301,985.10 = 122,526.60/x
  3. Step 3: Cross multiply
    201,496.20x = 301,985.10 × 122,526.60
  4. Step 4: Simplify right side
    201,496.20x = 37,001,207,553.66
  5. Step 5: Solve for x
    x = 37,001,207,553.66/201,496.20
  6. Step 6: Final answer
    x = 183,632.28

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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.