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Finding the Fourth Proportional to 266,420.32, 399,788.10 and 98,058.89

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Solution

The fourth proportional to 266,420.32, 399,788.10 and 98,058.89 is: 147,146.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,420.32 : 399,788.10 = 98,058.89 : x
  2. Step 2: Convert to fraction form
    266,420.32/399,788.10 = 98,058.89/x
  3. Step 3: Cross multiply
    266,420.32x = 399,788.10 × 98,058.89
  4. Step 4: Simplify right side
    266,420.32x = 39,202,778,320.68
  5. Step 5: Solve for x
    x = 39,202,778,320.68/266,420.32
  6. Step 6: Final answer
    x = 147,146.35

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