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Finding the Fourth Proportional to 86,643.88, 119,569.46 and 50,834.48

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Solution

The fourth proportional to 86,643.88, 119,569.46 and 50,834.48 is: 70,152.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,643.88 : 119,569.46 = 50,834.48 : x
  2. Step 2: Convert to fraction form
    86,643.88/119,569.46 = 50,834.48/x
  3. Step 3: Cross multiply
    86,643.88x = 119,569.46 × 50,834.48
  4. Step 4: Simplify right side
    86,643.88x = 6,078,251,322.98
  5. Step 5: Solve for x
    x = 6,078,251,322.98/86,643.88
  6. Step 6: Final answer
    x = 70,152.11

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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.