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Finding the Fourth Proportional to 98,657.61, 136,148.99 and 56,215.23

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Solution

The fourth proportional to 98,657.61, 136,148.99 and 56,215.23 is: 77,577.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,657.61 : 136,148.99 = 56,215.23 : x
  2. Step 2: Convert to fraction form
    98,657.61/136,148.99 = 56,215.23/x
  3. Step 3: Cross multiply
    98,657.61x = 136,148.99 × 56,215.23
  4. Step 4: Simplify right side
    98,657.61x = 7,653,646,506.04
  5. Step 5: Solve for x
    x = 7,653,646,506.04/98,657.61
  6. Step 6: Final answer
    x = 77,577.86

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