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Finding the Fourth Proportional to 255,688.94, 352,704.42 and 160,029.56

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Solution

The fourth proportional to 255,688.94, 352,704.42 and 160,029.56 is: 220,749.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,688.94 : 352,704.42 = 160,029.56 : x
  2. Step 2: Convert to fraction form
    255,688.94/352,704.42 = 160,029.56/x
  3. Step 3: Cross multiply
    255,688.94x = 352,704.42 × 160,029.56
  4. Step 4: Simplify right side
    255,688.94x = 56,443,131,379.13
  5. Step 5: Solve for x
    x = 56,443,131,379.13/255,688.94
  6. Step 6: Final answer
    x = 220,749.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.