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Finding the Fourth Proportional to 86,095.70, 129,156.86 and 43,952.91

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Solution

The fourth proportional to 86,095.70, 129,156.86 and 43,952.91 is: 65,936.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,095.70 : 129,156.86 = 43,952.91 : x
  2. Step 2: Convert to fraction form
    86,095.70/129,156.86 = 43,952.91/x
  3. Step 3: Cross multiply
    86,095.70x = 129,156.86 × 43,952.91
  4. Step 4: Simplify right side
    86,095.70x = 5,676,819,623.70
  5. Step 5: Solve for x
    x = 5,676,819,623.70/86,095.70
  6. Step 6: Final answer
    x = 65,936.16

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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.