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Finding the Fourth Proportional to 119,653.29, 165,122.63 and 65,940.22

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Solution

The fourth proportional to 119,653.29, 165,122.63 and 65,940.22 is: 90,998.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,653.29 : 165,122.63 = 65,940.22 : x
  2. Step 2: Convert to fraction form
    119,653.29/165,122.63 = 65,940.22/x
  3. Step 3: Cross multiply
    119,653.29x = 165,122.63 × 65,940.22
  4. Step 4: Simplify right side
    119,653.29x = 10,888,222,549.18
  5. Step 5: Solve for x
    x = 10,888,222,549.18/119,653.29
  6. Step 6: Final answer
    x = 90,998.10

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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.