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Finding the Fourth Proportional to 92,969.83, 139,426.80 and 26,415.37

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Solution

The fourth proportional to 92,969.83, 139,426.80 and 26,415.37 is: 39,615.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,969.83 : 139,426.80 = 26,415.37 : x
  2. Step 2: Convert to fraction form
    92,969.83/139,426.80 = 26,415.37/x
  3. Step 3: Cross multiply
    92,969.83x = 139,426.80 × 26,415.37
  4. Step 4: Simplify right side
    92,969.83x = 3,683,010,509.92
  5. Step 5: Solve for x
    x = 3,683,010,509.92/92,969.83
  6. Step 6: Final answer
    x = 39,615.12

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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.