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Finding the Fourth Proportional to 114,621.40, 171,994.86 and 44,503.48

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Solution

The fourth proportional to 114,621.40, 171,994.86 and 44,503.48 is: 66,779.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,621.40 : 171,994.86 = 44,503.48 : x
  2. Step 2: Convert to fraction form
    114,621.40/171,994.86 = 44,503.48/x
  3. Step 3: Cross multiply
    114,621.40x = 171,994.86 × 44,503.48
  4. Step 4: Simplify right side
    114,621.40x = 7,654,369,812.11
  5. Step 5: Solve for x
    x = 7,654,369,812.11/114,621.40
  6. Step 6: Final answer
    x = 66,779.59

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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.