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Finding the Fourth Proportional to 114,042.70, 157,344.35 and 79,586.51

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Solution

The fourth proportional to 114,042.70, 157,344.35 and 79,586.51 is: 109,805.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,042.70 : 157,344.35 = 79,586.51 : x
  2. Step 2: Convert to fraction form
    114,042.70/157,344.35 = 79,586.51/x
  3. Step 3: Cross multiply
    114,042.70x = 157,344.35 × 79,586.51
  4. Step 4: Simplify right side
    114,042.70x = 12,522,487,982.03
  5. Step 5: Solve for x
    x = 12,522,487,982.03/114,042.70
  6. Step 6: Final answer
    x = 109,805.26

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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.