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Finding the Fourth Proportional to 144,890.80, 217,433.40 and 65,964.40

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Solution

The fourth proportional to 144,890.80, 217,433.40 and 65,964.40 is: 98,990.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,890.80 : 217,433.40 = 65,964.40 : x
  2. Step 2: Convert to fraction form
    144,890.80/217,433.40 = 65,964.40/x
  3. Step 3: Cross multiply
    144,890.80x = 217,433.40 × 65,964.40
  4. Step 4: Simplify right side
    144,890.80x = 14,342,863,770.96
  5. Step 5: Solve for x
    x = 14,342,863,770.96/144,890.80
  6. Step 6: Final answer
    x = 98,990.85

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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.