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Finding the Fourth Proportional to 90,953.56, 124,606.96 and 87,544.56

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Solution

The fourth proportional to 90,953.56, 124,606.96 and 87,544.56 is: 119,936.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,953.56 : 124,606.96 = 87,544.56 : x
  2. Step 2: Convert to fraction form
    90,953.56/124,606.96 = 87,544.56/x
  3. Step 3: Cross multiply
    90,953.56x = 124,606.96 × 87,544.56
  4. Step 4: Simplify right side
    90,953.56x = 10,908,661,486.14
  5. Step 5: Solve for x
    x = 10,908,661,486.14/90,953.56
  6. Step 6: Final answer
    x = 119,936.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.