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Finding the Fourth Proportional to 212,737.64, 319,109.70 and 62,993.07

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Solution

The fourth proportional to 212,737.64, 319,109.70 and 62,993.07 is: 94,490.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,737.64 : 319,109.70 = 62,993.07 : x
  2. Step 2: Convert to fraction form
    212,737.64/319,109.70 = 62,993.07/x
  3. Step 3: Cross multiply
    212,737.64x = 319,109.70 × 62,993.07
  4. Step 4: Simplify right side
    212,737.64x = 20,101,699,669.78
  5. Step 5: Solve for x
    x = 20,101,699,669.78/212,737.64
  6. Step 6: Final answer
    x = 94,490.57

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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.