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Finding the Fourth Proportional to 114,714.70, 158,278.59 and 66,940.78

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Solution

The fourth proportional to 114,714.70, 158,278.59 and 66,940.78 is: 92,362.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,714.70 : 158,278.59 = 66,940.78 : x
  2. Step 2: Convert to fraction form
    114,714.70/158,278.59 = 66,940.78/x
  3. Step 3: Cross multiply
    114,714.70x = 158,278.59 × 66,940.78
  4. Step 4: Simplify right side
    114,714.70x = 10,595,292,271.90
  5. Step 5: Solve for x
    x = 10,595,292,271.90/114,714.70
  6. Step 6: Final answer
    x = 92,362.11

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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.