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Finding the Fourth Proportional to 213,800.42, 320,697.26 and 73,560.26

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Solution

The fourth proportional to 213,800.42, 320,697.26 and 73,560.26 is: 110,339.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,800.42 : 320,697.26 = 73,560.26 : x
  2. Step 2: Convert to fraction form
    213,800.42/320,697.26 = 73,560.26/x
  3. Step 3: Cross multiply
    213,800.42x = 320,697.26 × 73,560.26
  4. Step 4: Simplify right side
    213,800.42x = 23,590,573,826.89
  5. Step 5: Solve for x
    x = 23,590,573,826.89/213,800.42
  6. Step 6: Final answer
    x = 110,339.23

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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.