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Finding the Fourth Proportional to 133,083.60, 199,625.40 and 123,460.80

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Solution

The fourth proportional to 133,083.60, 199,625.40 and 123,460.80 is: 185,191.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,083.60 : 199,625.40 = 123,460.80 : x
  2. Step 2: Convert to fraction form
    133,083.60/199,625.40 = 123,460.80/x
  3. Step 3: Cross multiply
    133,083.60x = 199,625.40 × 123,460.80
  4. Step 4: Simplify right side
    133,083.60x = 24,645,911,584.32
  5. Step 5: Solve for x
    x = 24,645,911,584.32/133,083.60
  6. Step 6: Final answer
    x = 185,191.20

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1.5x scale

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.