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Finding the Fourth Proportional to 212,712.54, 319,065.21 and 62,952

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Solution

The fourth proportional to 212,712.54, 319,065.21 and 62,952 is: 94,426.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,712.54 : 319,065.21 = 62,952 : x
  2. Step 2: Convert to fraction form
    212,712.54/319,065.21 = 62,952/x
  3. Step 3: Cross multiply
    212,712.54x = 319,065.21 × 62,952
  4. Step 4: Simplify right side
    212,712.54x = 20,085,793,099.92
  5. Step 5: Solve for x
    x = 20,085,793,099.92/212,712.54
  6. Step 6: Final answer
    x = 94,426.93

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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.