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Finding the Fourth Proportional to 86,322.83, 119,143.87 and 58,012.11

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Solution

The fourth proportional to 86,322.83, 119,143.87 and 58,012.11 is: 80,069.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,322.83 : 119,143.87 = 58,012.11 : x
  2. Step 2: Convert to fraction form
    86,322.83/119,143.87 = 58,012.11/x
  3. Step 3: Cross multiply
    86,322.83x = 119,143.87 × 58,012.11
  4. Step 4: Simplify right side
    86,322.83x = 6,911,787,147.24
  5. Step 5: Solve for x
    x = 6,911,787,147.24/86,322.83
  6. Step 6: Final answer
    x = 80,069.06

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1.5x scale

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.