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Finding the Fourth Proportional to 141,695.50, 212,611.30 and 88,373.79

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Solution

The fourth proportional to 141,695.50, 212,611.30 and 88,373.79 is: 132,603.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,695.50 : 212,611.30 = 88,373.79 : x
  2. Step 2: Convert to fraction form
    141,695.50/212,611.30 = 88,373.79/x
  3. Step 3: Cross multiply
    141,695.50x = 212,611.30 × 88,373.79
  4. Step 4: Simplify right side
    141,695.50x = 18,789,265,935.96
  5. Step 5: Solve for x
    x = 18,789,265,935.96/141,695.50
  6. Step 6: Final answer
    x = 132,603.12

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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.