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Finding the Fourth Proportional to 157,553.40, 236,483.70 and 78,756.60

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Solution

The fourth proportional to 157,553.40, 236,483.70 and 78,756.60 is: 118,211.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,553.40 : 236,483.70 = 78,756.60 : x
  2. Step 2: Convert to fraction form
    157,553.40/236,483.70 = 78,756.60/x
  3. Step 3: Cross multiply
    157,553.40x = 236,483.70 × 78,756.60
  4. Step 4: Simplify right side
    157,553.40x = 18,624,652,167.42
  5. Step 5: Solve for x
    x = 18,624,652,167.42/157,553.40
  6. Step 6: Final answer
    x = 118,211.68

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