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Finding the Fourth Proportional to 212,566.96, 318,631.74 and 94,294

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Solution

The fourth proportional to 212,566.96, 318,631.74 and 94,294 is: 141,343.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,566.96 : 318,631.74 = 94,294 : x
  2. Step 2: Convert to fraction form
    212,566.96/318,631.74 = 94,294/x
  3. Step 3: Cross multiply
    212,566.96x = 318,631.74 × 94,294
  4. Step 4: Simplify right side
    212,566.96x = 30,045,061,291.56
  5. Step 5: Solve for x
    x = 30,045,061,291.56/212,566.96
  6. Step 6: Final answer
    x = 141,343.99

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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.