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Finding the Fourth Proportional to 103,686.53, 155,554.52 and 33,565.87

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Solution

The fourth proportional to 103,686.53, 155,554.52 and 33,565.87 is: 50,356.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,686.53 : 155,554.52 = 33,565.87 : x
  2. Step 2: Convert to fraction form
    103,686.53/155,554.52 = 33,565.87/x
  3. Step 3: Cross multiply
    103,686.53x = 155,554.52 × 33,565.87
  4. Step 4: Simplify right side
    103,686.53x = 5,221,322,796.23
  5. Step 5: Solve for x
    x = 5,221,322,796.23/103,686.53
  6. Step 6: Final answer
    x = 50,356.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.