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Finding the Fourth Proportional to 121,453.21, 167,605.73 and 67,741.71

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Solution

The fourth proportional to 121,453.21, 167,605.73 and 67,741.71 is: 93,483.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,453.21 : 167,605.73 = 67,741.71 : x
  2. Step 2: Convert to fraction form
    121,453.21/167,605.73 = 67,741.71/x
  3. Step 3: Cross multiply
    121,453.21x = 167,605.73 × 67,741.71
  4. Step 4: Simplify right side
    121,453.21x = 11,353,898,756.00
  5. Step 5: Solve for x
    x = 11,353,898,756.00/121,453.21
  6. Step 6: Final answer
    x = 93,483.73

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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.