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Finding the Fourth Proportional to 103,652.72, 155,190.34 and 52,941.93

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Solution

The fourth proportional to 103,652.72, 155,190.34 and 52,941.93 is: 79,265.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,652.72 : 155,190.34 = 52,941.93 : x
  2. Step 2: Convert to fraction form
    103,652.72/155,190.34 = 52,941.93/x
  3. Step 3: Cross multiply
    103,652.72x = 155,190.34 × 52,941.93
  4. Step 4: Simplify right side
    103,652.72x = 8,216,076,116.96
  5. Step 5: Solve for x
    x = 8,216,076,116.96/103,652.72
  6. Step 6: Final answer
    x = 79,265.42

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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.