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Finding the Fourth Proportional to 201,220.60, 301,721.55 and 68,032.30

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Solution

The fourth proportional to 201,220.60, 301,721.55 and 68,032.30 is: 102,011.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,220.60 : 301,721.55 = 68,032.30 : x
  2. Step 2: Convert to fraction form
    201,220.60/301,721.55 = 68,032.30/x
  3. Step 3: Cross multiply
    201,220.60x = 301,721.55 × 68,032.30
  4. Step 4: Simplify right side
    201,220.60x = 20,526,811,006.07
  5. Step 5: Solve for x
    x = 20,526,811,006.07/201,220.60
  6. Step 6: Final answer
    x = 102,011.48

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1.5x scale

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.