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Finding the Fourth Proportional to 104,051.52, 143,652.96 and 68,304.06

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Solution

The fourth proportional to 104,051.52, 143,652.96 and 68,304.06 is: 94,300.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,051.52 : 143,652.96 = 68,304.06 : x
  2. Step 2: Convert to fraction form
    104,051.52/143,652.96 = 68,304.06/x
  3. Step 3: Cross multiply
    104,051.52x = 143,652.96 × 68,304.06
  4. Step 4: Simplify right side
    104,051.52x = 9,812,080,399.02
  5. Step 5: Solve for x
    x = 9,812,080,399.02/104,051.52
  6. Step 6: Final answer
    x = 94,300.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.