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Finding the Fourth Proportional to 113,361.40, 170,042.10 and 51,153.40

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Solution

The fourth proportional to 113,361.40, 170,042.10 and 51,153.40 is: 76,730.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,361.40 : 170,042.10 = 51,153.40 : x
  2. Step 2: Convert to fraction form
    113,361.40/170,042.10 = 51,153.40/x
  3. Step 3: Cross multiply
    113,361.40x = 170,042.10 × 51,153.40
  4. Step 4: Simplify right side
    113,361.40x = 8,698,231,558.14
  5. Step 5: Solve for x
    x = 8,698,231,558.14/113,361.40
  6. Step 6: Final answer
    x = 76,730.10

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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.