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Finding the Fourth Proportional to 112,765.86, 169,119.63 and 53,483.58

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Solution

The fourth proportional to 112,765.86, 169,119.63 and 53,483.58 is: 80,211.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,765.86 : 169,119.63 = 53,483.58 : x
  2. Step 2: Convert to fraction form
    112,765.86/169,119.63 = 53,483.58/x
  3. Step 3: Cross multiply
    112,765.86x = 169,119.63 × 53,483.58
  4. Step 4: Simplify right side
    112,765.86x = 9,045,123,260.68
  5. Step 5: Solve for x
    x = 9,045,123,260.68/112,765.86
  6. Step 6: Final answer
    x = 80,211.54

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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.