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Finding the Fourth Proportional to 114,329.92, 171,177.96 and 86,164.72

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Solution

The fourth proportional to 114,329.92, 171,177.96 and 86,164.72 is: 129,008.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,329.92 : 171,177.96 = 86,164.72 : x
  2. Step 2: Convert to fraction form
    114,329.92/171,177.96 = 86,164.72/x
  3. Step 3: Cross multiply
    114,329.92x = 171,177.96 × 86,164.72
  4. Step 4: Simplify right side
    114,329.92x = 14,749,500,993.57
  5. Step 5: Solve for x
    x = 14,749,500,993.57/114,329.92
  6. Step 6: Final answer
    x = 129,008.23

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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.