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Finding the Fourth Proportional to 114,325.60, 171,682.80 and 84,776.80

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Solution

The fourth proportional to 114,325.60, 171,682.80 and 84,776.80 is: 127,309.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,325.60 : 171,682.80 = 84,776.80 : x
  2. Step 2: Convert to fraction form
    114,325.60/171,682.80 = 84,776.80/x
  3. Step 3: Cross multiply
    114,325.60x = 171,682.80 × 84,776.80
  4. Step 4: Simplify right side
    114,325.60x = 14,554,718,399.04
  5. Step 5: Solve for x
    x = 14,554,718,399.04/114,325.60
  6. Step 6: Final answer
    x = 127,309.36

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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.