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Finding the Fourth Proportional to 212,813.01, 319,222.67 and 63,068.49

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Solution

The fourth proportional to 212,813.01, 319,222.67 and 63,068.49 is: 94,603.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,813.01 : 319,222.67 = 63,068.49 : x
  2. Step 2: Convert to fraction form
    212,813.01/319,222.67 = 63,068.49/x
  3. Step 3: Cross multiply
    212,813.01x = 319,222.67 × 63,068.49
  4. Step 4: Simplify right side
    212,813.01x = 20,132,891,455.33
  5. Step 5: Solve for x
    x = 20,132,891,455.33/212,813.01
  6. Step 6: Final answer
    x = 94,603.67

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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.