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Finding the Fourth Proportional to 103,471.16, 155,173.93 and 44,290.94

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Solution

The fourth proportional to 103,471.16, 155,173.93 and 44,290.94 is: 66,422.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,471.16 : 155,173.93 = 44,290.94 : x
  2. Step 2: Convert to fraction form
    103,471.16/155,173.93 = 44,290.94/x
  3. Step 3: Cross multiply
    103,471.16x = 155,173.93 × 44,290.94
  4. Step 4: Simplify right side
    103,471.16x = 6,872,798,336.60
  5. Step 5: Solve for x
    x = 6,872,798,336.60/103,471.16
  6. Step 6: Final answer
    x = 66,422.36

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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.