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Finding the Fourth Proportional to 114,700.80, 172,051.20 and 112,951.20

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Solution

The fourth proportional to 114,700.80, 172,051.20 and 112,951.20 is: 169,426.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,700.80 : 172,051.20 = 112,951.20 : x
  2. Step 2: Convert to fraction form
    114,700.80/172,051.20 = 112,951.20/x
  3. Step 3: Cross multiply
    114,700.80x = 172,051.20 × 112,951.20
  4. Step 4: Simplify right side
    114,700.80x = 19,433,389,501.44
  5. Step 5: Solve for x
    x = 19,433,389,501.44/114,700.80
  6. Step 6: Final answer
    x = 169,426.80

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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.