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Finding the Fourth Proportional to 89,207.40, 133,811.16 and 26,877.90

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Solution

The fourth proportional to 89,207.40, 133,811.16 and 26,877.90 is: 40,316.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,207.40 : 133,811.16 = 26,877.90 : x
  2. Step 2: Convert to fraction form
    89,207.40/133,811.16 = 26,877.90/x
  3. Step 3: Cross multiply
    89,207.40x = 133,811.16 × 26,877.90
  4. Step 4: Simplify right side
    89,207.40x = 3,596,563,378.36
  5. Step 5: Solve for x
    x = 3,596,563,378.36/89,207.40
  6. Step 6: Final answer
    x = 40,316.87

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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.