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Finding the Fourth Proportional to 94,643.67, 141,992.87 and 30,600.45

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Solution

The fourth proportional to 94,643.67, 141,992.87 and 30,600.45 is: 45,909.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,643.67 : 141,992.87 = 30,600.45 : x
  2. Step 2: Convert to fraction form
    94,643.67/141,992.87 = 30,600.45/x
  3. Step 3: Cross multiply
    94,643.67x = 141,992.87 × 30,600.45
  4. Step 4: Simplify right side
    94,643.67x = 4,345,045,565.79
  5. Step 5: Solve for x
    x = 4,345,045,565.79/94,643.67
  6. Step 6: Final answer
    x = 45,909.52

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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.