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Finding the Fourth Proportional to 138,547.41, 190,912.95 and 95,540.01

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Solution

The fourth proportional to 138,547.41, 190,912.95 and 95,540.01 is: 131,650.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,547.41 : 190,912.95 = 95,540.01 : x
  2. Step 2: Convert to fraction form
    138,547.41/190,912.95 = 95,540.01/x
  3. Step 3: Cross multiply
    138,547.41x = 190,912.95 × 95,540.01
  4. Step 4: Simplify right side
    138,547.41x = 18,239,825,152.13
  5. Step 5: Solve for x
    x = 18,239,825,152.13/138,547.41
  6. Step 6: Final answer
    x = 131,650.42

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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.