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Finding the Fourth Proportional to 56,051.40, 77,350.84 and 30,900.92

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Solution

The fourth proportional to 56,051.40, 77,350.84 and 30,900.92 is: 42,643.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,051.40 : 77,350.84 = 30,900.92 : x
  2. Step 2: Convert to fraction form
    56,051.40/77,350.84 = 30,900.92/x
  3. Step 3: Cross multiply
    56,051.40x = 77,350.84 × 30,900.92
  4. Step 4: Simplify right side
    56,051.40x = 2,390,212,118.77
  5. Step 5: Solve for x
    x = 2,390,212,118.77/56,051.40
  6. Step 6: Final answer
    x = 42,643.22

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