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Finding the Fourth Proportional to 86,510.35, 119,361.69 and 50,681.10

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Solution

The fourth proportional to 86,510.35, 119,361.69 and 50,681.10 is: 69,926.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,510.35 : 119,361.69 = 50,681.10 : x
  2. Step 2: Convert to fraction form
    86,510.35/119,361.69 = 50,681.10/x
  3. Step 3: Cross multiply
    86,510.35x = 119,361.69 × 50,681.10
  4. Step 4: Simplify right side
    86,510.35x = 6,049,381,747.06
  5. Step 5: Solve for x
    x = 6,049,381,747.06/86,510.35
  6. Step 6: Final answer
    x = 69,926.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.