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Finding the Fourth Proportional to 212,787.94, 319,228.59 and 63,039.93

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Solution

The fourth proportional to 212,787.94, 319,228.59 and 63,039.93 is: 94,573.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,787.94 : 319,228.59 = 63,039.93 : x
  2. Step 2: Convert to fraction form
    212,787.94/319,228.59 = 63,039.93/x
  3. Step 3: Cross multiply
    212,787.94x = 319,228.59 × 63,039.93
  4. Step 4: Simplify right side
    212,787.94x = 20,124,148,765.67
  5. Step 5: Solve for x
    x = 20,124,148,765.67/212,787.94
  6. Step 6: Final answer
    x = 94,573.73

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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.