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Finding the Fourth Proportional to 86,967.05, 130,252.53 and 51,834.11

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Solution

The fourth proportional to 86,967.05, 130,252.53 and 51,834.11 is: 77,633.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,967.05 : 130,252.53 = 51,834.11 : x
  2. Step 2: Convert to fraction form
    86,967.05/130,252.53 = 51,834.11/x
  3. Step 3: Cross multiply
    86,967.05x = 130,252.53 × 51,834.11
  4. Step 4: Simplify right side
    86,967.05x = 6,751,523,967.80
  5. Step 5: Solve for x
    x = 6,751,523,967.80/86,967.05
  6. Step 6: Final answer
    x = 77,633.13

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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.