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Finding the Fourth Proportional to 114,047.20, 171,070.80 and 69,760.45

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Solution

The fourth proportional to 114,047.20, 171,070.80 and 69,760.45 is: 104,640.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,047.20 : 171,070.80 = 69,760.45 : x
  2. Step 2: Convert to fraction form
    114,047.20/171,070.80 = 69,760.45/x
  3. Step 3: Cross multiply
    114,047.20x = 171,070.80 × 69,760.45
  4. Step 4: Simplify right side
    114,047.20x = 11,933,975,989.86
  5. Step 5: Solve for x
    x = 11,933,975,989.86/114,047.20
  6. Step 6: Final answer
    x = 104,640.68

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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.