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Finding the Fourth Proportional to 86,240.84, 119,011.14 and 48,515

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Solution

The fourth proportional to 86,240.84, 119,011.14 and 48,515 is: 66,950.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,240.84 : 119,011.14 = 48,515 : x
  2. Step 2: Convert to fraction form
    86,240.84/119,011.14 = 48,515/x
  3. Step 3: Cross multiply
    86,240.84x = 119,011.14 × 48,515
  4. Step 4: Simplify right side
    86,240.84x = 5,773,825,457.10
  5. Step 5: Solve for x
    x = 5,773,825,457.10/86,240.84
  6. Step 6: Final answer
    x = 66,950.01

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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.