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Finding the Fourth Proportional to 105,750.93, 158,589.44 and 42,554.66

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Solution

The fourth proportional to 105,750.93, 158,589.44 and 42,554.66 is: 63,817.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,750.93 : 158,589.44 = 42,554.66 : x
  2. Step 2: Convert to fraction form
    105,750.93/158,589.44 = 42,554.66/x
  3. Step 3: Cross multiply
    105,750.93x = 158,589.44 × 42,554.66
  4. Step 4: Simplify right side
    105,750.93x = 6,748,719,538.05
  5. Step 5: Solve for x
    x = 6,748,719,538.05/105,750.93
  6. Step 6: Final answer
    x = 63,817.12

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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.