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Finding the Fourth Proportional to 106,162.45, 146,508.99 and 65,889.18

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Solution

The fourth proportional to 106,162.45, 146,508.99 and 65,889.18 is: 90,930.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,162.45 : 146,508.99 = 65,889.18 : x
  2. Step 2: Convert to fraction form
    106,162.45/146,508.99 = 65,889.18/x
  3. Step 3: Cross multiply
    106,162.45x = 146,508.99 × 65,889.18
  4. Step 4: Simplify right side
    106,162.45x = 9,653,357,522.58
  5. Step 5: Solve for x
    x = 9,653,357,522.58/106,162.45
  6. Step 6: Final answer
    x = 90,930.06

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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.