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Finding the Fourth Proportional to 73,878.80, 101,923.80 and 45,535.28

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Solution

The fourth proportional to 73,878.80, 101,923.80 and 45,535.28 is: 62,820.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,878.80 : 101,923.80 = 45,535.28 : x
  2. Step 2: Convert to fraction form
    73,878.80/101,923.80 = 45,535.28/x
  3. Step 3: Cross multiply
    73,878.80x = 101,923.80 × 45,535.28
  4. Step 4: Simplify right side
    73,878.80x = 4,641,128,771.66
  5. Step 5: Solve for x
    x = 4,641,128,771.66/73,878.80
  6. Step 6: Final answer
    x = 62,820.85

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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.