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Finding the Fourth Proportional to 154,053.76, 212,590.28 and 86,071.24

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Solution

The fourth proportional to 154,053.76, 212,590.28 and 86,071.24 is: 118,776.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,053.76 : 212,590.28 = 86,071.24 : x
  2. Step 2: Convert to fraction form
    154,053.76/212,590.28 = 86,071.24/x
  3. Step 3: Cross multiply
    154,053.76x = 212,590.28 × 86,071.24
  4. Step 4: Simplify right side
    154,053.76x = 18,297,909,011.55
  5. Step 5: Solve for x
    x = 18,297,909,011.55/154,053.76
  6. Step 6: Final answer
    x = 118,776.13

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