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Finding the Fourth Proportional to 171,792.01, 257,683.79 and 66,611.01

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Solution

The fourth proportional to 171,792.01, 257,683.79 and 66,611.01 is: 99,914.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,792.01 : 257,683.79 = 66,611.01 : x
  2. Step 2: Convert to fraction form
    171,792.01/257,683.79 = 66,611.01/x
  3. Step 3: Cross multiply
    171,792.01x = 257,683.79 × 66,611.01
  4. Step 4: Simplify right side
    171,792.01x = 17,164,577,512.53
  5. Step 5: Solve for x
    x = 17,164,577,512.53/171,792.01
  6. Step 6: Final answer
    x = 99,914.88

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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.