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Finding the Fourth Proportional to 212,818.66, 319,274.70 and 63,070.68

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Solution

The fourth proportional to 212,818.66, 319,274.70 and 63,070.68 is: 94,619.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,818.66 : 319,274.70 = 63,070.68 : x
  2. Step 2: Convert to fraction form
    212,818.66/319,274.70 = 63,070.68/x
  3. Step 3: Cross multiply
    212,818.66x = 319,274.70 × 63,070.68
  4. Step 4: Simplify right side
    212,818.66x = 20,136,873,396.56
  5. Step 5: Solve for x
    x = 20,136,873,396.56/212,818.66
  6. Step 6: Final answer
    x = 94,619.87

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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.