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Finding the Fourth Proportional to 253,663.25, 350,041.25 and 140,477.09

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Solution

The fourth proportional to 253,663.25, 350,041.25 and 140,477.09 is: 193,850.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,663.25 : 350,041.25 = 140,477.09 : x
  2. Step 2: Convert to fraction form
    253,663.25/350,041.25 = 140,477.09/x
  3. Step 3: Cross multiply
    253,663.25x = 350,041.25 × 140,477.09
  4. Step 4: Simplify right side
    253,663.25x = 49,172,775,477.58
  5. Step 5: Solve for x
    x = 49,172,775,477.58/253,663.25
  6. Step 6: Final answer
    x = 193,850.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.