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Finding the Fourth Proportional to 155,946.22, 215,205.53 and 87,962.98

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Solution

The fourth proportional to 155,946.22, 215,205.53 and 87,962.98 is: 121,388.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,946.22 : 215,205.53 = 87,962.98 : x
  2. Step 2: Convert to fraction form
    155,946.22/215,205.53 = 87,962.98/x
  3. Step 3: Cross multiply
    155,946.22x = 215,205.53 × 87,962.98
  4. Step 4: Simplify right side
    155,946.22x = 18,930,119,156.96
  5. Step 5: Solve for x
    x = 18,930,119,156.96/155,946.22
  6. Step 6: Final answer
    x = 121,388.77

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