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Finding the Fourth Proportional to 92,846.72, 139,368.48 and 57,811.04

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Solution

The fourth proportional to 92,846.72, 139,368.48 and 57,811.04 is: 86,777.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,846.72 : 139,368.48 = 57,811.04 : x
  2. Step 2: Convert to fraction form
    92,846.72/139,368.48 = 57,811.04/x
  3. Step 3: Cross multiply
    92,846.72x = 139,368.48 × 57,811.04
  4. Step 4: Simplify right side
    92,846.72x = 8,057,036,772.02
  5. Step 5: Solve for x
    x = 8,057,036,772.02/92,846.72
  6. Step 6: Final answer
    x = 86,777.83

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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.