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Finding the Fourth Proportional to 91,212.46, 125,894.22 and 53,498.86

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Solution

The fourth proportional to 91,212.46, 125,894.22 and 53,498.86 is: 73,840.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,212.46 : 125,894.22 = 53,498.86 : x
  2. Step 2: Convert to fraction form
    91,212.46/125,894.22 = 53,498.86/x
  3. Step 3: Cross multiply
    91,212.46x = 125,894.22 × 53,498.86
  4. Step 4: Simplify right side
    91,212.46x = 6,735,197,250.59
  5. Step 5: Solve for x
    x = 6,735,197,250.59/91,212.46
  6. Step 6: Final answer
    x = 73,840.76

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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.