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Finding the Fourth Proportional to 114,904.10, 172,361.55 and 36,020.90

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Solution

The fourth proportional to 114,904.10, 172,361.55 and 36,020.90 is: 54,033.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,904.10 : 172,361.55 = 36,020.90 : x
  2. Step 2: Convert to fraction form
    114,904.10/172,361.55 = 36,020.90/x
  3. Step 3: Cross multiply
    114,904.10x = 172,361.55 × 36,020.90
  4. Step 4: Simplify right side
    114,904.10x = 6,208,618,156.40
  5. Step 5: Solve for x
    x = 6,208,618,156.40/114,904.10
  6. Step 6: Final answer
    x = 54,033.04

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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.