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Finding the Fourth Proportional to 55,853.49, 77,075.87 and 30,702.81

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Solution

The fourth proportional to 55,853.49, 77,075.87 and 30,702.81 is: 42,368.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,853.49 : 77,075.87 = 30,702.81 : x
  2. Step 2: Convert to fraction form
    55,853.49/77,075.87 = 30,702.81/x
  3. Step 3: Cross multiply
    55,853.49x = 77,075.87 × 30,702.81
  4. Step 4: Simplify right side
    55,853.49x = 2,366,445,638.68
  5. Step 5: Solve for x
    x = 2,366,445,638.68/55,853.49
  6. Step 6: Final answer
    x = 42,368.81

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