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Finding the Fourth Proportional to 133,175.80, 183,611.10 and 94,978.90

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Solution

The fourth proportional to 133,175.80, 183,611.10 and 94,978.90 is: 130,948.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,175.80 : 183,611.10 = 94,978.90 : x
  2. Step 2: Convert to fraction form
    133,175.80/183,611.10 = 94,978.90/x
  3. Step 3: Cross multiply
    133,175.80x = 183,611.10 × 94,978.90
  4. Step 4: Simplify right side
    133,175.80x = 17,439,180,305.79
  5. Step 5: Solve for x
    x = 17,439,180,305.79/133,175.80
  6. Step 6: Final answer
    x = 130,948.57

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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.