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Finding the Fourth Proportional to 212,473.98, 318,636.71 and 62,674.51

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Solution

The fourth proportional to 212,473.98, 318,636.71 and 62,674.51 is: 93,989.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,473.98 : 318,636.71 = 62,674.51 : x
  2. Step 2: Convert to fraction form
    212,473.98/318,636.71 = 62,674.51/x
  3. Step 3: Cross multiply
    212,473.98x = 318,636.71 × 62,674.51
  4. Step 4: Simplify right side
    212,473.98x = 19,970,397,760.71
  5. Step 5: Solve for x
    x = 19,970,397,760.71/212,473.98
  6. Step 6: Final answer
    x = 93,989.85

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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.