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Finding the Fourth Proportional to 80,907.48, 111,655.78 and 45,097.48

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Solution

The fourth proportional to 80,907.48, 111,655.78 and 45,097.48 is: 62,236.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,907.48 : 111,655.78 = 45,097.48 : x
  2. Step 2: Convert to fraction form
    80,907.48/111,655.78 = 45,097.48/x
  3. Step 3: Cross multiply
    80,907.48x = 111,655.78 × 45,097.48
  4. Step 4: Simplify right side
    80,907.48x = 5,035,394,305.43
  5. Step 5: Solve for x
    x = 5,035,394,305.43/80,907.48
  6. Step 6: Final answer
    x = 62,236.45

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1.5x scale

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.