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Finding the Fourth Proportional to 90,164.99, 124,405.31 and 58,295.54

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Solution

The fourth proportional to 90,164.99, 124,405.31 and 58,295.54 is: 80,433.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,164.99 : 124,405.31 = 58,295.54 : x
  2. Step 2: Convert to fraction form
    90,164.99/124,405.31 = 58,295.54/x
  3. Step 3: Cross multiply
    90,164.99x = 124,405.31 × 58,295.54
  4. Step 4: Simplify right side
    90,164.99x = 7,252,275,182.07
  5. Step 5: Solve for x
    x = 7,252,275,182.07/90,164.99
  6. Step 6: Final answer
    x = 80,433.38

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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.