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Finding the Fourth Proportional to 95,153.88, 142,730.82 and 39,711

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Solution

The fourth proportional to 95,153.88, 142,730.82 and 39,711 is: 59,566.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,153.88 : 142,730.82 = 39,711 : x
  2. Step 2: Convert to fraction form
    95,153.88/142,730.82 = 39,711/x
  3. Step 3: Cross multiply
    95,153.88x = 142,730.82 × 39,711
  4. Step 4: Simplify right side
    95,153.88x = 5,667,983,593.02
  5. Step 5: Solve for x
    x = 5,667,983,593.02/95,153.88
  6. Step 6: Final answer
    x = 59,566.50

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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.