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Finding the Fourth Proportional to 153,346.50, 211,586.31 and 89,671.98

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Solution

The fourth proportional to 153,346.50, 211,586.31 and 89,671.98 is: 123,728.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,346.50 : 211,586.31 = 89,671.98 : x
  2. Step 2: Convert to fraction form
    153,346.50/211,586.31 = 89,671.98/x
  3. Step 3: Cross multiply
    153,346.50x = 211,586.31 × 89,671.98
  4. Step 4: Simplify right side
    153,346.50x = 18,973,363,358.59
  5. Step 5: Solve for x
    x = 18,973,363,358.59/153,346.50
  6. Step 6: Final answer
    x = 123,728.70

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