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Finding the Fourth Proportional to 212,670.88, 319,006.31 and 62,899.52

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Solution

The fourth proportional to 212,670.88, 319,006.31 and 62,899.52 is: 94,349.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,670.88 : 319,006.31 = 62,899.52 : x
  2. Step 2: Convert to fraction form
    212,670.88/319,006.31 = 62,899.52/x
  3. Step 3: Cross multiply
    212,670.88x = 319,006.31 × 62,899.52
  4. Step 4: Simplify right side
    212,670.88x = 20,065,341,866.44
  5. Step 5: Solve for x
    x = 20,065,341,866.44/212,670.88
  6. Step 6: Final answer
    x = 94,349.27

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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.