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Finding the Fourth Proportional to 212,671.74, 319,054.32 and 62,900.36

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Solution

The fourth proportional to 212,671.74, 319,054.32 and 62,900.36 is: 94,364.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,671.74 : 319,054.32 = 62,900.36 : x
  2. Step 2: Convert to fraction form
    212,671.74/319,054.32 = 62,900.36/x
  3. Step 3: Cross multiply
    212,671.74x = 319,054.32 × 62,900.36
  4. Step 4: Simplify right side
    212,671.74x = 20,068,629,992.28
  5. Step 5: Solve for x
    x = 20,068,629,992.28/212,671.74
  6. Step 6: Final answer
    x = 94,364.35

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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.