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Finding the Fourth Proportional to 260,721.30, 365,534.70 and 260,721.30

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Solution

The fourth proportional to 260,721.30, 365,534.70 and 260,721.30 is: 365,534.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,721.30 : 365,534.70 = 260,721.30 : x
  2. Step 2: Convert to fraction form
    260,721.30/365,534.70 = 260,721.30/x
  3. Step 3: Cross multiply
    260,721.30x = 365,534.70 × 260,721.30
  4. Step 4: Simplify right side
    260,721.30x = 95,302,682,179.11
  5. Step 5: Solve for x
    x = 95,302,682,179.11/260,721.30
  6. Step 6: Final answer
    x = 365,534.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.