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Finding the Fourth Proportional to 370,768.59, 556,174.59 and 143,065.44

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Solution

The fourth proportional to 370,768.59, 556,174.59 and 143,065.44 is: 214,606.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,768.59 : 556,174.59 = 143,065.44 : x
  2. Step 2: Convert to fraction form
    370,768.59/556,174.59 = 143,065.44/x
  3. Step 3: Cross multiply
    370,768.59x = 556,174.59 × 143,065.44
  4. Step 4: Simplify right side
    370,768.59x = 79,569,362,435.17
  5. Step 5: Solve for x
    x = 79,569,362,435.17/370,768.59
  6. Step 6: Final answer
    x = 214,606.54

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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.