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Finding the Fourth Proportional to 212,712.93, 318,956.54 and 62,932.59

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Solution

The fourth proportional to 212,712.93, 318,956.54 and 62,932.59 is: 94,365.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,712.93 : 318,956.54 = 62,932.59 : x
  2. Step 2: Convert to fraction form
    212,712.93/318,956.54 = 62,932.59/x
  3. Step 3: Cross multiply
    212,712.93x = 318,956.54 × 62,932.59
  4. Step 4: Simplify right side
    212,712.93x = 20,072,760,844.98
  5. Step 5: Solve for x
    x = 20,072,760,844.98/212,712.93
  6. Step 6: Final answer
    x = 94,365.49

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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.