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Finding the Fourth Proportional to 76,104.86, 114,162.28 and 19,946.34

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Solution

The fourth proportional to 76,104.86, 114,162.28 and 19,946.34 is: 29,920.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,104.86 : 114,162.28 = 19,946.34 : x
  2. Step 2: Convert to fraction form
    76,104.86/114,162.28 = 19,946.34/x
  3. Step 3: Cross multiply
    76,104.86x = 114,162.28 × 19,946.34
  4. Step 4: Simplify right side
    76,104.86x = 2,277,119,652.06
  5. Step 5: Solve for x
    x = 2,277,119,652.06/76,104.86
  6. Step 6: Final answer
    x = 29,920.82

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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.