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Finding the Fourth Proportional to 68,585.88, 103,051.35 and 43,637.07

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Solution

The fourth proportional to 68,585.88, 103,051.35 and 43,637.07 is: 65,565.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,585.88 : 103,051.35 = 43,637.07 : x
  2. Step 2: Convert to fraction form
    68,585.88/103,051.35 = 43,637.07/x
  3. Step 3: Cross multiply
    68,585.88x = 103,051.35 × 43,637.07
  4. Step 4: Simplify right side
    68,585.88x = 4,496,858,973.54
  5. Step 5: Solve for x
    x = 4,496,858,973.54/68,585.88
  6. Step 6: Final answer
    x = 65,565.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.