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Finding the Fourth Proportional to 253,952.65, 350,458.62 and 139,241.77

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Solution

The fourth proportional to 253,952.65, 350,458.62 and 139,241.77 is: 192,155.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,952.65 : 350,458.62 = 139,241.77 : x
  2. Step 2: Convert to fraction form
    253,952.65/350,458.62 = 139,241.77/x
  3. Step 3: Cross multiply
    253,952.65x = 350,458.62 × 139,241.77
  4. Step 4: Simplify right side
    253,952.65x = 48,798,477,162.25
  5. Step 5: Solve for x
    x = 48,798,477,162.25/253,952.65
  6. Step 6: Final answer
    x = 192,155.81

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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.