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Finding the Fourth Proportional to 86,271.84, 129,351.84 and 36,326.04

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Solution

The fourth proportional to 86,271.84, 129,351.84 and 36,326.04 is: 54,465.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,271.84 : 129,351.84 = 36,326.04 : x
  2. Step 2: Convert to fraction form
    86,271.84/129,351.84 = 36,326.04/x
  3. Step 3: Cross multiply
    86,271.84x = 129,351.84 × 36,326.04
  4. Step 4: Simplify right side
    86,271.84x = 4,698,840,113.91
  5. Step 5: Solve for x
    x = 4,698,840,113.91/86,271.84
  6. Step 6: Final answer
    x = 54,465.51

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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.