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Finding the Fourth Proportional to 474,830.90, 712,246.35 and 142,406.90

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Solution

The fourth proportional to 474,830.90, 712,246.35 and 142,406.90 is: 213,610.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,830.90 : 712,246.35 = 142,406.90 : x
  2. Step 2: Convert to fraction form
    474,830.90/712,246.35 = 142,406.90/x
  3. Step 3: Cross multiply
    474,830.90x = 712,246.35 × 142,406.90
  4. Step 4: Simplify right side
    474,830.90x = 101,428,794,739.82
  5. Step 5: Solve for x
    x = 101,428,794,739.82/474,830.90
  6. Step 6: Final answer
    x = 213,610.35

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