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Finding the Fourth Proportional to 346,643.90, 520,063.05 and 147,059.90

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Solution

The fourth proportional to 346,643.90, 520,063.05 and 147,059.90 is: 220,631.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,643.90 : 520,063.05 = 147,059.90 : x
  2. Step 2: Convert to fraction form
    346,643.90/520,063.05 = 147,059.90/x
  3. Step 3: Cross multiply
    346,643.90x = 520,063.05 × 147,059.90
  4. Step 4: Simplify right side
    346,643.90x = 76,480,420,126.70
  5. Step 5: Solve for x
    x = 76,480,420,126.70/346,643.90
  6. Step 6: Final answer
    x = 220,631.09

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