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Finding the Fourth Proportional to 76,064.40, 113,999.40 and 36,536.40

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Solution

The fourth proportional to 76,064.40, 113,999.40 and 36,536.40 is: 54,757.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,064.40 : 113,999.40 = 36,536.40 : x
  2. Step 2: Convert to fraction form
    76,064.40/113,999.40 = 36,536.40/x
  3. Step 3: Cross multiply
    76,064.40x = 113,999.40 × 36,536.40
  4. Step 4: Simplify right side
    76,064.40x = 4,165,127,678.16
  5. Step 5: Solve for x
    x = 4,165,127,678.16/76,064.40
  6. Step 6: Final answer
    x = 54,757.91

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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.