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Finding the Fourth Proportional to 370,975.76, 556,399.04 and 171,279.12

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Solution

The fourth proportional to 370,975.76, 556,399.04 and 171,279.12 is: 256,888.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,975.76 : 556,399.04 = 171,279.12 : x
  2. Step 2: Convert to fraction form
    370,975.76/556,399.04 = 171,279.12/x
  3. Step 3: Cross multiply
    370,975.76x = 556,399.04 × 171,279.12
  4. Step 4: Simplify right side
    370,975.76x = 95,299,537,940.04
  5. Step 5: Solve for x
    x = 95,299,537,940.04/370,975.76
  6. Step 6: Final answer
    x = 256,888.85

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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.