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Finding the Fourth Proportional to 76,201.86, 105,093.41 and 45,980.76

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Solution

The fourth proportional to 76,201.86, 105,093.41 and 45,980.76 is: 63,414.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,201.86 : 105,093.41 = 45,980.76 : x
  2. Step 2: Convert to fraction form
    76,201.86/105,093.41 = 45,980.76/x
  3. Step 3: Cross multiply
    76,201.86x = 105,093.41 × 45,980.76
  4. Step 4: Simplify right side
    76,201.86x = 4,832,274,632.89
  5. Step 5: Solve for x
    x = 4,832,274,632.89/76,201.86
  6. Step 6: Final answer
    x = 63,414.13

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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.