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Finding the Fourth Proportional to 253,873.69, 350,345.69 and 140,703.73

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Solution

The fourth proportional to 253,873.69, 350,345.69 and 140,703.73 is: 194,171.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,873.69 : 350,345.69 = 140,703.73 : x
  2. Step 2: Convert to fraction form
    253,873.69/350,345.69 = 140,703.73/x
  3. Step 3: Cross multiply
    253,873.69x = 350,345.69 × 140,703.73
  4. Step 4: Simplify right side
    253,873.69x = 49,294,944,320.68
  5. Step 5: Solve for x
    x = 49,294,944,320.68/253,873.69
  6. Step 6: Final answer
    x = 194,171.14

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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.