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Finding the Fourth Proportional to 121,457.87, 182,186.80 and 62,255.78

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Solution

The fourth proportional to 121,457.87, 182,186.80 and 62,255.78 is: 93,383.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,457.87 : 182,186.80 = 62,255.78 : x
  2. Step 2: Convert to fraction form
    121,457.87/182,186.80 = 62,255.78/x
  3. Step 3: Cross multiply
    121,457.87x = 182,186.80 × 62,255.78
  4. Step 4: Simplify right side
    121,457.87x = 11,342,181,339.70
  5. Step 5: Solve for x
    x = 11,342,181,339.70/121,457.87
  6. Step 6: Final answer
    x = 93,383.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.