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Finding the Fourth Proportional to 117,990.26, 162,685.42 and 96,400.32

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Solution

The fourth proportional to 117,990.26, 162,685.42 and 96,400.32 is: 132,917.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,990.26 : 162,685.42 = 96,400.32 : x
  2. Step 2: Convert to fraction form
    117,990.26/162,685.42 = 96,400.32/x
  3. Step 3: Cross multiply
    117,990.26x = 162,685.42 × 96,400.32
  4. Step 4: Simplify right side
    117,990.26x = 15,682,926,547.33
  5. Step 5: Solve for x
    x = 15,682,926,547.33/117,990.26
  6. Step 6: Final answer
    x = 132,917.13

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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.