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Finding the Fourth Proportional to 144,701.80, 217,052.70 and 60,447.40

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Solution

The fourth proportional to 144,701.80, 217,052.70 and 60,447.40 is: 90,671.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,701.80 : 217,052.70 = 60,447.40 : x
  2. Step 2: Convert to fraction form
    144,701.80/217,052.70 = 60,447.40/x
  3. Step 3: Cross multiply
    144,701.80x = 217,052.70 × 60,447.40
  4. Step 4: Simplify right side
    144,701.80x = 13,120,271,377.98
  5. Step 5: Solve for x
    x = 13,120,271,377.98/144,701.80
  6. Step 6: Final answer
    x = 90,671.10

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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.