Home / 253,605.11-349,970.78-140,425.43

Finding the Fourth Proportional to 253,605.11, 349,970.78 and 140,425.43

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Solution

The fourth proportional to 253,605.11, 349,970.78 and 140,425.43 is: 193,784.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,605.11 : 349,970.78 = 140,425.43 : x
  2. Step 2: Convert to fraction form
    253,605.11/349,970.78 = 140,425.43/x
  3. Step 3: Cross multiply
    253,605.11x = 349,970.78 × 140,425.43
  4. Step 4: Simplify right side
    253,605.11x = 49,144,796,566.81
  5. Step 5: Solve for x
    x = 49,144,796,566.81/253,605.11
  6. Step 6: Final answer
    x = 193,784.73

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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.