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Finding the Fourth Proportional to 370,873.30, 556,164.36 and 130,936

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Solution

The fourth proportional to 370,873.30, 556,164.36 and 130,936 is: 196,352.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,873.30 : 556,164.36 = 130,936 : x
  2. Step 2: Convert to fraction form
    370,873.30/556,164.36 = 130,936/x
  3. Step 3: Cross multiply
    370,873.30x = 556,164.36 × 130,936
  4. Step 4: Simplify right side
    370,873.30x = 72,821,936,640.96
  5. Step 5: Solve for x
    x = 72,821,936,640.96/370,873.30
  6. Step 6: Final answer
    x = 196,352.60

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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.