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Finding the Fourth Proportional to 133,070.31, 183,630.60 and 75,704.25

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Solution

The fourth proportional to 133,070.31, 183,630.60 and 75,704.25 is: 104,468.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,070.31 : 183,630.60 = 75,704.25 : x
  2. Step 2: Convert to fraction form
    133,070.31/183,630.60 = 75,704.25/x
  3. Step 3: Cross multiply
    133,070.31x = 183,630.60 × 75,704.25
  4. Step 4: Simplify right side
    133,070.31x = 13,901,616,850.05
  5. Step 5: Solve for x
    x = 13,901,616,850.05/133,070.31
  6. Step 6: Final answer
    x = 104,468.21

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1.5x scale

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.