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Finding the Fourth Proportional to 103,266.76, 154,903.96 and 28,392.78

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Solution

The fourth proportional to 103,266.76, 154,903.96 and 28,392.78 is: 42,590.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,266.76 : 154,903.96 = 28,392.78 : x
  2. Step 2: Convert to fraction form
    103,266.76/154,903.96 = 28,392.78/x
  3. Step 3: Cross multiply
    103,266.76x = 154,903.96 × 28,392.78
  4. Step 4: Simplify right side
    103,266.76x = 4,398,154,057.41
  5. Step 5: Solve for x
    x = 4,398,154,057.41/103,266.76
  6. Step 6: Final answer
    x = 42,590.22

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