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Finding the Fourth Proportional to 271,555.60, 407,430.60 and 113,832.40

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Solution

The fourth proportional to 271,555.60, 407,430.60 and 113,832.40 is: 170,789.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,555.60 : 407,430.60 = 113,832.40 : x
  2. Step 2: Convert to fraction form
    271,555.60/407,430.60 = 113,832.40/x
  3. Step 3: Cross multiply
    271,555.60x = 407,430.60 × 113,832.40
  4. Step 4: Simplify right side
    271,555.60x = 46,378,803,031.44
  5. Step 5: Solve for x
    x = 46,378,803,031.44/271,555.60
  6. Step 6: Final answer
    x = 170,789.34

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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.