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Finding the Fourth Proportional to 282,774.92, 390,236.90 and 153,722.12

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Solution

The fourth proportional to 282,774.92, 390,236.90 and 153,722.12 is: 212,140.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,774.92 : 390,236.90 = 153,722.12 : x
  2. Step 2: Convert to fraction form
    282,774.92/390,236.90 = 153,722.12/x
  3. Step 3: Cross multiply
    282,774.92x = 390,236.90 × 153,722.12
  4. Step 4: Simplify right side
    282,774.92x = 59,988,043,570.23
  5. Step 5: Solve for x
    x = 59,988,043,570.23/282,774.92
  6. Step 6: Final answer
    x = 212,140.61

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