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Finding the Fourth Proportional to 259,521.86, 389,263.35 and 72,547.94

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Solution

The fourth proportional to 259,521.86, 389,263.35 and 72,547.94 is: 108,816.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,521.86 : 389,263.35 = 72,547.94 : x
  2. Step 2: Convert to fraction form
    259,521.86/389,263.35 = 72,547.94/x
  3. Step 3: Cross multiply
    259,521.86x = 389,263.35 × 72,547.94
  4. Step 4: Simplify right side
    259,521.86x = 28,240,254,160.00
  5. Step 5: Solve for x
    x = 28,240,254,160.00/259,521.86
  6. Step 6: Final answer
    x = 108,816.48

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