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Finding the Fourth Proportional to 99,479.35, 149,119.22 and 46,208.72

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Solution

The fourth proportional to 99,479.35, 149,119.22 and 46,208.72 is: 69,266.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,479.35 : 149,119.22 = 46,208.72 : x
  2. Step 2: Convert to fraction form
    99,479.35/149,119.22 = 46,208.72/x
  3. Step 3: Cross multiply
    99,479.35x = 149,119.22 × 46,208.72
  4. Step 4: Simplify right side
    99,479.35x = 6,890,608,283.60
  5. Step 5: Solve for x
    x = 6,890,608,283.60/99,479.35
  6. Step 6: Final answer
    x = 69,266.72

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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.