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Finding the Fourth Proportional to 90,163.94, 124,435.49 and 51,924.92

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Solution

The fourth proportional to 90,163.94, 124,435.49 and 51,924.92 is: 71,661.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,163.94 : 124,435.49 = 51,924.92 : x
  2. Step 2: Convert to fraction form
    90,163.94/124,435.49 = 51,924.92/x
  3. Step 3: Cross multiply
    90,163.94x = 124,435.49 × 51,924.92
  4. Step 4: Simplify right side
    90,163.94x = 6,461,301,981.61
  5. Step 5: Solve for x
    x = 6,461,301,981.61/90,163.94
  6. Step 6: Final answer
    x = 71,661.71

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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.