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Finding the Fourth Proportional to 58,687.20, 88,030.80 and 56,613.60

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Solution

The fourth proportional to 58,687.20, 88,030.80 and 56,613.60 is: 84,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,687.20 : 88,030.80 = 56,613.60 : x
  2. Step 2: Convert to fraction form
    58,687.20/88,030.80 = 56,613.60/x
  3. Step 3: Cross multiply
    58,687.20x = 88,030.80 × 56,613.60
  4. Step 4: Simplify right side
    58,687.20x = 4,983,740,498.88
  5. Step 5: Solve for x
    x = 4,983,740,498.88/58,687.20
  6. Step 6: Final answer
    x = 84,920.40

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