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Finding the Fourth Proportional to 199,989.18, 299,726.19 and 94,575.78

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Solution

The fourth proportional to 199,989.18, 299,726.19 and 94,575.78 is: 141,741.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,989.18 : 299,726.19 = 94,575.78 : x
  2. Step 2: Convert to fraction form
    199,989.18/299,726.19 = 94,575.78/x
  3. Step 3: Cross multiply
    199,989.18x = 299,726.19 × 94,575.78
  4. Step 4: Simplify right side
    199,989.18x = 28,346,838,205.68
  5. Step 5: Solve for x
    x = 28,346,838,205.68/199,989.18
  6. Step 6: Final answer
    x = 141,741.86

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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.