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Finding the Fourth Proportional to 173,361.84, 260,080.56 and 53,419.20

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Solution

The fourth proportional to 173,361.84, 260,080.56 and 53,419.20 is: 80,140.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,361.84 : 260,080.56 = 53,419.20 : x
  2. Step 2: Convert to fraction form
    173,361.84/260,080.56 = 53,419.20/x
  3. Step 3: Cross multiply
    173,361.84x = 260,080.56 × 53,419.20
  4. Step 4: Simplify right side
    173,361.84x = 13,893,295,450.75
  5. Step 5: Solve for x
    x = 13,893,295,450.75/173,361.84
  6. Step 6: Final answer
    x = 80,140.45

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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.