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Finding the Fourth Proportional to 212,953.96, 319,427.15 and 63,295.43

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Solution

The fourth proportional to 212,953.96, 319,427.15 and 63,295.43 is: 94,942.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,953.96 : 319,427.15 = 63,295.43 : x
  2. Step 2: Convert to fraction form
    212,953.96/319,427.15 = 63,295.43/x
  3. Step 3: Cross multiply
    212,953.96x = 319,427.15 × 63,295.43
  4. Step 4: Simplify right side
    212,953.96x = 20,218,276,899.31
  5. Step 5: Solve for x
    x = 20,218,276,899.31/212,953.96
  6. Step 6: Final answer
    x = 94,942.01

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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.