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Finding the Fourth Proportional to 66,437.78, 99,523.02 and 33,056.60

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Solution

The fourth proportional to 66,437.78, 99,523.02 and 33,056.60 is: 49,518.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,437.78 : 99,523.02 = 33,056.60 : x
  2. Step 2: Convert to fraction form
    66,437.78/99,523.02 = 33,056.60/x
  3. Step 3: Cross multiply
    66,437.78x = 99,523.02 × 33,056.60
  4. Step 4: Simplify right side
    66,437.78x = 3,289,892,662.93
  5. Step 5: Solve for x
    x = 3,289,892,662.93/66,437.78
  6. Step 6: Final answer
    x = 49,518.40

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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.