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Finding the Fourth Proportional to 76,066.86, 114,106.86 and 19,906.74

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Solution

The fourth proportional to 76,066.86, 114,106.86 and 19,906.74 is: 29,861.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,066.86 : 114,106.86 = 19,906.74 : x
  2. Step 2: Convert to fraction form
    76,066.86/114,106.86 = 19,906.74/x
  3. Step 3: Cross multiply
    76,066.86x = 114,106.86 × 19,906.74
  4. Step 4: Simplify right side
    76,066.86x = 2,271,495,594.24
  5. Step 5: Solve for x
    x = 2,271,495,594.24/76,066.86
  6. Step 6: Final answer
    x = 29,861.83

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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.