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Finding the Fourth Proportional to 212,860.96, 319,292.69 and 63,102.54

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Solution

The fourth proportional to 212,860.96, 319,292.69 and 63,102.54 is: 94,654.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,860.96 : 319,292.69 = 63,102.54 : x
  2. Step 2: Convert to fraction form
    212,860.96/319,292.69 = 63,102.54/x
  3. Step 3: Cross multiply
    212,860.96x = 319,292.69 × 63,102.54
  4. Step 4: Simplify right side
    212,860.96x = 20,148,180,624.27
  5. Step 5: Solve for x
    x = 20,148,180,624.27/212,860.96
  6. Step 6: Final answer
    x = 94,654.18

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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.