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Finding the Fourth Proportional to 161,730.80, 242,596.20 and 99,436.40

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Solution

The fourth proportional to 161,730.80, 242,596.20 and 99,436.40 is: 149,154.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,730.80 : 242,596.20 = 99,436.40 : x
  2. Step 2: Convert to fraction form
    161,730.80/242,596.20 = 99,436.40/x
  3. Step 3: Cross multiply
    161,730.80x = 242,596.20 × 99,436.40
  4. Step 4: Simplify right side
    161,730.80x = 24,122,892,781.68
  5. Step 5: Solve for x
    x = 24,122,892,781.68/161,730.80
  6. Step 6: Final answer
    x = 149,154.60

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