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Finding the Fourth Proportional to 66,788.34, 100,219.40 and 37,222.84

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Solution

The fourth proportional to 66,788.34, 100,219.40 and 37,222.84 is: 55,854.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,788.34 : 100,219.40 = 37,222.84 : x
  2. Step 2: Convert to fraction form
    66,788.34/100,219.40 = 37,222.84/x
  3. Step 3: Cross multiply
    66,788.34x = 100,219.40 × 37,222.84
  4. Step 4: Simplify right side
    66,788.34x = 3,730,450,533.60
  5. Step 5: Solve for x
    x = 3,730,450,533.60/66,788.34
  6. Step 6: Final answer
    x = 55,854.82

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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.