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Finding the Fourth Proportional to 210,740.54, 316,109.08 and 90,882.24

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Solution

The fourth proportional to 210,740.54, 316,109.08 and 90,882.24 is: 136,322.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,740.54 : 316,109.08 = 90,882.24 : x
  2. Step 2: Convert to fraction form
    210,740.54/316,109.08 = 90,882.24/x
  3. Step 3: Cross multiply
    210,740.54x = 316,109.08 × 90,882.24
  4. Step 4: Simplify right side
    210,740.54x = 28,728,700,202.93
  5. Step 5: Solve for x
    x = 28,728,700,202.93/210,740.54
  6. Step 6: Final answer
    x = 136,322.61

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