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Finding the Fourth Proportional to 247,996.52, 342,261.95 and 140,555.01

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Solution

The fourth proportional to 247,996.52, 342,261.95 and 140,555.01 is: 193,981.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,996.52 : 342,261.95 = 140,555.01 : x
  2. Step 2: Convert to fraction form
    247,996.52/342,261.95 = 140,555.01/x
  3. Step 3: Cross multiply
    247,996.52x = 342,261.95 × 140,555.01
  4. Step 4: Simplify right side
    247,996.52x = 48,106,631,102.09
  5. Step 5: Solve for x
    x = 48,106,631,102.09/247,996.52
  6. Step 6: Final answer
    x = 193,981.08

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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.