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Finding the Fourth Proportional to 66,196.44, 99,294.59 and 19,449.32

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Solution

The fourth proportional to 66,196.44, 99,294.59 and 19,449.32 is: 29,173.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,196.44 : 99,294.59 = 19,449.32 : x
  2. Step 2: Convert to fraction form
    66,196.44/99,294.59 = 19,449.32/x
  3. Step 3: Cross multiply
    66,196.44x = 99,294.59 × 19,449.32
  4. Step 4: Simplify right side
    66,196.44x = 1,931,211,807.33
  5. Step 5: Solve for x
    x = 1,931,211,807.33/66,196.44
  6. Step 6: Final answer
    x = 29,173.95

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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.