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Finding the Fourth Proportional to 144,295.48, 199,123.94 and 80,633.80

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Solution

The fourth proportional to 144,295.48, 199,123.94 and 80,633.80 is: 111,272.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,295.48 : 199,123.94 = 80,633.80 : x
  2. Step 2: Convert to fraction form
    144,295.48/199,123.94 = 80,633.80/x
  3. Step 3: Cross multiply
    144,295.48x = 199,123.94 × 80,633.80
  4. Step 4: Simplify right side
    144,295.48x = 16,056,119,953.17
  5. Step 5: Solve for x
    x = 16,056,119,953.17/144,295.48
  6. Step 6: Final answer
    x = 111,272.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.