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Finding the Fourth Proportional to 76,650.55, 114,971.11 and 36,698.00

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Solution

The fourth proportional to 76,650.55, 114,971.11 and 36,698.00 is: 55,044.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,650.55 : 114,971.11 = 36,698.00 : x
  2. Step 2: Convert to fraction form
    76,650.55/114,971.11 = 36,698.00/x
  3. Step 3: Cross multiply
    76,650.55x = 114,971.11 × 36,698.00
  4. Step 4: Simplify right side
    76,650.55x = 4,219,209,990.46
  5. Step 5: Solve for x
    x = 4,219,209,990.46/76,650.55
  6. Step 6: Final answer
    x = 55,044.75

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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.