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Finding the Fourth Proportional to 356,861.06, 535,122.09 and 207,147.27

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Solution

The fourth proportional to 356,861.06, 535,122.09 and 207,147.27 is: 310,622.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,861.06 : 535,122.09 = 207,147.27 : x
  2. Step 2: Convert to fraction form
    356,861.06/535,122.09 = 207,147.27/x
  3. Step 3: Cross multiply
    356,861.06x = 535,122.09 × 207,147.27
  4. Step 4: Simplify right side
    356,861.06x = 110,849,080,060.19
  5. Step 5: Solve for x
    x = 110,849,080,060.19/356,861.06
  6. Step 6: Final answer
    x = 310,622.52

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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.