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Finding the Fourth Proportional to 89,884.98, 134,830.80 and 33,719.40

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Solution

The fourth proportional to 89,884.98, 134,830.80 and 33,719.40 is: 50,580.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,884.98 : 134,830.80 = 33,719.40 : x
  2. Step 2: Convert to fraction form
    89,884.98/134,830.80 = 33,719.40/x
  3. Step 3: Cross multiply
    89,884.98x = 134,830.80 × 33,719.40
  4. Step 4: Simplify right side
    89,884.98x = 4,546,413,677.52
  5. Step 5: Solve for x
    x = 4,546,413,677.52/89,884.98
  6. Step 6: Final answer
    x = 50,580.35

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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.