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Finding the Fourth Proportional to 255,111.09, 382,721.99 and 77,613.49

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Solution

The fourth proportional to 255,111.09, 382,721.99 and 77,613.49 is: 116,437.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,111.09 : 382,721.99 = 77,613.49 : x
  2. Step 2: Convert to fraction form
    255,111.09/382,721.99 = 77,613.49/x
  3. Step 3: Cross multiply
    255,111.09x = 382,721.99 × 77,613.49
  4. Step 4: Simplify right side
    255,111.09x = 29,704,388,580.87
  5. Step 5: Solve for x
    x = 29,704,388,580.87/255,111.09
  6. Step 6: Final answer
    x = 116,437.07

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