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Finding the Fourth Proportional to 92,797.23, 139,213.26 and 42,199.92

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Solution

The fourth proportional to 92,797.23, 139,213.26 and 42,199.92 is: 63,307.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,797.23 : 139,213.26 = 42,199.92 : x
  2. Step 2: Convert to fraction form
    92,797.23/139,213.26 = 42,199.92/x
  3. Step 3: Cross multiply
    92,797.23x = 139,213.26 × 42,199.92
  4. Step 4: Simplify right side
    92,797.23x = 5,874,788,434.94
  5. Step 5: Solve for x
    x = 5,874,788,434.94/92,797.23
  6. Step 6: Final answer
    x = 63,307.80

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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.