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Finding the Fourth Proportional to 86,950.96, 119,990.52 and 47,206.96

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Solution

The fourth proportional to 86,950.96, 119,990.52 and 47,206.96 is: 65,144.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,950.96 : 119,990.52 = 47,206.96 : x
  2. Step 2: Convert to fraction form
    86,950.96/119,990.52 = 47,206.96/x
  3. Step 3: Cross multiply
    86,950.96x = 119,990.52 × 47,206.96
  4. Step 4: Simplify right side
    86,950.96x = 5,664,387,678.02
  5. Step 5: Solve for x
    x = 5,664,387,678.02/86,950.96
  6. Step 6: Final answer
    x = 65,144.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.