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Finding the Fourth Proportional to 271,779.45, 407,253.51 and 113,921.79

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Solution

The fourth proportional to 271,779.45, 407,253.51 and 113,921.79 is: 170,708.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,779.45 : 407,253.51 = 113,921.79 : x
  2. Step 2: Convert to fraction form
    271,779.45/407,253.51 = 113,921.79/x
  3. Step 3: Cross multiply
    271,779.45x = 407,253.51 × 113,921.79
  4. Step 4: Simplify right side
    271,779.45x = 46,395,048,842.98
  5. Step 5: Solve for x
    x = 46,395,048,842.98/271,779.45
  6. Step 6: Final answer
    x = 170,708.45

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1.5x scale

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.