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Finding the Fourth Proportional to 76,303.72, 114,480.48 and 36,865.36

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Solution

The fourth proportional to 76,303.72, 114,480.48 and 36,865.36 is: 55,310.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,303.72 : 114,480.48 = 36,865.36 : x
  2. Step 2: Convert to fraction form
    76,303.72/114,480.48 = 36,865.36/x
  3. Step 3: Cross multiply
    76,303.72x = 114,480.48 × 36,865.36
  4. Step 4: Simplify right side
    76,303.72x = 4,220,364,108.17
  5. Step 5: Solve for x
    x = 4,220,364,108.17/76,303.72
  6. Step 6: Final answer
    x = 55,310.07

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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.