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Finding the Fourth Proportional to 222,913.40, 334,418.70 and 73,128.20

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Solution

The fourth proportional to 222,913.40, 334,418.70 and 73,128.20 is: 109,708.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,913.40 : 334,418.70 = 73,128.20 : x
  2. Step 2: Convert to fraction form
    222,913.40/334,418.70 = 73,128.20/x
  3. Step 3: Cross multiply
    222,913.40x = 334,418.70 × 73,128.20
  4. Step 4: Simplify right side
    222,913.40x = 24,455,437,577.34
  5. Step 5: Solve for x
    x = 24,455,437,577.34/222,913.40
  6. Step 6: Final answer
    x = 109,708.24

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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.