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Finding the Fourth Proportional to 135,999.60, 203,902.20 and 61,058.40

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Solution

The fourth proportional to 135,999.60, 203,902.20 and 61,058.40 is: 91,543.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,999.60 : 203,902.20 = 61,058.40 : x
  2. Step 2: Convert to fraction form
    135,999.60/203,902.20 = 61,058.40/x
  3. Step 3: Cross multiply
    135,999.60x = 203,902.20 × 61,058.40
  4. Step 4: Simplify right side
    135,999.60x = 12,449,942,088.48
  5. Step 5: Solve for x
    x = 12,449,942,088.48/135,999.60
  6. Step 6: Final answer
    x = 91,543.96

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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.