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Finding the Fourth Proportional to 248,382.74, 342,748.64 and 140,952.77

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Solution

The fourth proportional to 248,382.74, 342,748.64 and 140,952.77 is: 194,503.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,382.74 : 342,748.64 = 140,952.77 : x
  2. Step 2: Convert to fraction form
    248,382.74/342,748.64 = 140,952.77/x
  3. Step 3: Cross multiply
    248,382.74x = 342,748.64 × 140,952.77
  4. Step 4: Simplify right side
    248,382.74x = 48,311,369,995.47
  5. Step 5: Solve for x
    x = 48,311,369,995.47/248,382.74
  6. Step 6: Final answer
    x = 194,503.73

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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.