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Finding the Fourth Proportional to 114,245.93, 171,398.46 and 66,901.03

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Solution

The fourth proportional to 114,245.93, 171,398.46 and 66,901.03 is: 100,368.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,245.93 : 171,398.46 = 66,901.03 : x
  2. Step 2: Convert to fraction form
    114,245.93/171,398.46 = 66,901.03/x
  3. Step 3: Cross multiply
    114,245.93x = 171,398.46 × 66,901.03
  4. Step 4: Simplify right side
    114,245.93x = 11,466,732,657.42
  5. Step 5: Solve for x
    x = 11,466,732,657.42/114,245.93
  6. Step 6: Final answer
    x = 100,368.85

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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.