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Finding the Fourth Proportional to 76,191.79, 114,178.79 and 42,841.86

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Solution

The fourth proportional to 76,191.79, 114,178.79 and 42,841.86 is: 64,201.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,191.79 : 114,178.79 = 42,841.86 : x
  2. Step 2: Convert to fraction form
    76,191.79/114,178.79 = 42,841.86/x
  3. Step 3: Cross multiply
    76,191.79x = 114,178.79 × 42,841.86
  4. Step 4: Simplify right side
    76,191.79x = 4,891,631,936.85
  5. Step 5: Solve for x
    x = 4,891,631,936.85/76,191.79
  6. Step 6: Final answer
    x = 64,201.56

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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.