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Finding the Fourth Proportional to 92,858.20, 139,235 and 29,663.48

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Solution

The fourth proportional to 92,858.20, 139,235 and 29,663.48 is: 44,478.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,858.20 : 139,235 = 29,663.48 : x
  2. Step 2: Convert to fraction form
    92,858.20/139,235 = 29,663.48/x
  3. Step 3: Cross multiply
    92,858.20x = 139,235 × 29,663.48
  4. Step 4: Simplify right side
    92,858.20x = 4,130,194,637.80
  5. Step 5: Solve for x
    x = 4,130,194,637.80/92,858.20
  6. Step 6: Final answer
    x = 44,478.51

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.