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Finding the Fourth Proportional to 253,598.61, 349,961.80 and 140,418.93

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Solution

The fourth proportional to 253,598.61, 349,961.80 and 140,418.93 is: 193,775.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,598.61 : 349,961.80 = 140,418.93 : x
  2. Step 2: Convert to fraction form
    253,598.61/349,961.80 = 140,418.93/x
  3. Step 3: Cross multiply
    253,598.61x = 349,961.80 × 140,418.93
  4. Step 4: Simplify right side
    253,598.61x = 49,141,261,496.87
  5. Step 5: Solve for x
    x = 49,141,261,496.87/253,598.61
  6. Step 6: Final answer
    x = 193,775.75

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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.