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Finding the Fourth Proportional to 135,381.66, 203,203.71 and 65,310.18

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Solution

The fourth proportional to 135,381.66, 203,203.71 and 65,310.18 is: 98,028.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,381.66 : 203,203.71 = 65,310.18 : x
  2. Step 2: Convert to fraction form
    135,381.66/203,203.71 = 65,310.18/x
  3. Step 3: Cross multiply
    135,381.66x = 203,203.71 × 65,310.18
  4. Step 4: Simplify right side
    135,381.66x = 13,271,270,876.77
  5. Step 5: Solve for x
    x = 13,271,270,876.77/135,381.66
  6. Step 6: Final answer
    x = 98,028.57

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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.