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Finding the Fourth Proportional to 74,564.47, 102,900.90 and 40,574.89

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Solution

The fourth proportional to 74,564.47, 102,900.90 and 40,574.89 is: 55,994.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,564.47 : 102,900.90 = 40,574.89 : x
  2. Step 2: Convert to fraction form
    74,564.47/102,900.90 = 40,574.89/x
  3. Step 3: Cross multiply
    74,564.47x = 102,900.90 × 40,574.89
  4. Step 4: Simplify right side
    74,564.47x = 4,175,192,698.40
  5. Step 5: Solve for x
    x = 4,175,192,698.40/74,564.47
  6. Step 6: Final answer
    x = 55,994.40

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