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Finding the Fourth Proportional to 86,529.00, 129,807.22 and 36,609.47

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Solution

The fourth proportional to 86,529.00, 129,807.22 and 36,609.47 is: 54,920.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,529.00 : 129,807.22 = 36,609.47 : x
  2. Step 2: Convert to fraction form
    86,529.00/129,807.22 = 36,609.47/x
  3. Step 3: Cross multiply
    86,529.00x = 129,807.22 × 36,609.47
  4. Step 4: Simplify right side
    86,529.00x = 4,752,173,392.72
  5. Step 5: Solve for x
    x = 4,752,173,392.72/86,529.00
  6. Step 6: Final answer
    x = 54,920.01

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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.