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Finding the Fourth Proportional to 114,491.70, 171,737.55 and 84,967.20

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Solution

The fourth proportional to 114,491.70, 171,737.55 and 84,967.20 is: 127,450.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,491.70 : 171,737.55 = 84,967.20 : x
  2. Step 2: Convert to fraction form
    114,491.70/171,737.55 = 84,967.20/x
  3. Step 3: Cross multiply
    114,491.70x = 171,737.55 × 84,967.20
  4. Step 4: Simplify right side
    114,491.70x = 14,592,058,758.36
  5. Step 5: Solve for x
    x = 14,592,058,758.36/114,491.70
  6. Step 6: Final answer
    x = 127,450.80

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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.