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Finding the Fourth Proportional to 170,231.84, 254,867.64 and 90,088.28

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Solution

The fourth proportional to 170,231.84, 254,867.64 and 90,088.28 is: 134,878.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,231.84 : 254,867.64 = 90,088.28 : x
  2. Step 2: Convert to fraction form
    170,231.84/254,867.64 = 90,088.28/x
  3. Step 3: Cross multiply
    170,231.84x = 254,867.64 × 90,088.28
  4. Step 4: Simplify right side
    170,231.84x = 22,960,587,315.26
  5. Step 5: Solve for x
    x = 22,960,587,315.26/170,231.84
  6. Step 6: Final answer
    x = 134,878.34

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