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Finding the Fourth Proportional to 443,142.95, 664,574.99 and 143,554.01

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Solution

The fourth proportional to 443,142.95, 664,574.99 and 143,554.01 is: 215,285.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,142.95 : 664,574.99 = 143,554.01 : x
  2. Step 2: Convert to fraction form
    443,142.95/664,574.99 = 143,554.01/x
  3. Step 3: Cross multiply
    443,142.95x = 664,574.99 × 143,554.01
  4. Step 4: Simplify right side
    443,142.95x = 95,402,405,703.88
  5. Step 5: Solve for x
    x = 95,402,405,703.88/443,142.95
  6. Step 6: Final answer
    x = 215,285.85

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