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Finding the Fourth Proportional to 135,497.95, 186,972.03 and 75,053.60

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Solution

The fourth proportional to 135,497.95, 186,972.03 and 75,053.60 is: 103,565.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,497.95 : 186,972.03 = 75,053.60 : x
  2. Step 2: Convert to fraction form
    135,497.95/186,972.03 = 75,053.60/x
  3. Step 3: Cross multiply
    135,497.95x = 186,972.03 × 75,053.60
  4. Step 4: Simplify right side
    135,497.95x = 14,032,923,015.95
  5. Step 5: Solve for x
    x = 14,032,923,015.95/135,497.95
  6. Step 6: Final answer
    x = 103,565.58

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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.