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Finding the Fourth Proportional to 369,222.99, 509,520.68 and 208,074.81

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Solution

The fourth proportional to 369,222.99, 509,520.68 and 208,074.81 is: 287,139.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,222.99 : 509,520.68 = 208,074.81 : x
  2. Step 2: Convert to fraction form
    369,222.99/509,520.68 = 208,074.81/x
  3. Step 3: Cross multiply
    369,222.99x = 509,520.68 × 208,074.81
  4. Step 4: Simplify right side
    369,222.99x = 106,018,417,641.70
  5. Step 5: Solve for x
    x = 106,018,417,641.70/369,222.99
  6. Step 6: Final answer
    x = 287,139.26

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