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Finding the Fourth Proportional to 101,756.28, 140,432.29 and 56,448.86

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Solution

The fourth proportional to 101,756.28, 140,432.29 and 56,448.86 is: 77,904.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,756.28 : 140,432.29 = 56,448.86 : x
  2. Step 2: Convert to fraction form
    101,756.28/140,432.29 = 56,448.86/x
  3. Step 3: Cross multiply
    101,756.28x = 140,432.29 × 56,448.86
  4. Step 4: Simplify right side
    101,756.28x = 7,927,242,677.69
  5. Step 5: Solve for x
    x = 7,927,242,677.69/101,756.28
  6. Step 6: Final answer
    x = 77,904.21

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