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Finding the Fourth Proportional to 114,048.88, 171,082.44 and 39,138.88

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Solution

The fourth proportional to 114,048.88, 171,082.44 and 39,138.88 is: 58,711.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,048.88 : 171,082.44 = 39,138.88 : x
  2. Step 2: Convert to fraction form
    114,048.88/171,082.44 = 39,138.88/x
  3. Step 3: Cross multiply
    114,048.88x = 171,082.44 × 39,138.88
  4. Step 4: Simplify right side
    114,048.88x = 6,695,975,089.27
  5. Step 5: Solve for x
    x = 6,695,975,089.27/114,048.88
  6. Step 6: Final answer
    x = 58,711.45

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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.