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Finding the Fourth Proportional to 193,373.80, 266,871.92 and 107,340.86

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Solution

The fourth proportional to 193,373.80, 266,871.92 and 107,340.86 is: 148,139.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,373.80 : 266,871.92 = 107,340.86 : x
  2. Step 2: Convert to fraction form
    193,373.80/266,871.92 = 107,340.86/x
  3. Step 3: Cross multiply
    193,373.80x = 266,871.92 × 107,340.86
  4. Step 4: Simplify right side
    193,373.80x = 28,646,261,533.13
  5. Step 5: Solve for x
    x = 28,646,261,533.13/193,373.80
  6. Step 6: Final answer
    x = 148,139.31

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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.