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Finding the Fourth Proportional to 103,346.10, 155,019.15 and 67,916.70

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Solution

The fourth proportional to 103,346.10, 155,019.15 and 67,916.70 is: 101,875.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,346.10 : 155,019.15 = 67,916.70 : x
  2. Step 2: Convert to fraction form
    103,346.10/155,019.15 = 67,916.70/x
  3. Step 3: Cross multiply
    103,346.10x = 155,019.15 × 67,916.70
  4. Step 4: Simplify right side
    103,346.10x = 10,528,389,104.81
  5. Step 5: Solve for x
    x = 10,528,389,104.81/103,346.10
  6. Step 6: Final answer
    x = 101,875.05

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