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Finding the Fourth Proportional to 212,060.44, 318,089.22 and 64,316.44

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Solution

The fourth proportional to 212,060.44, 318,089.22 and 64,316.44 is: 96,474.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,060.44 : 318,089.22 = 64,316.44 : x
  2. Step 2: Convert to fraction form
    212,060.44/318,089.22 = 64,316.44/x
  3. Step 3: Cross multiply
    212,060.44x = 318,089.22 × 64,316.44
  4. Step 4: Simplify right side
    212,060.44x = 20,458,366,232.78
  5. Step 5: Solve for x
    x = 20,458,366,232.78/212,060.44
  6. Step 6: Final answer
    x = 96,474.22

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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.