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Finding the Fourth Proportional to 92,762.08, 139,113.92 and 30,418.08

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Solution

The fourth proportional to 92,762.08, 139,113.92 and 30,418.08 is: 45,617.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,762.08 : 139,113.92 = 30,418.08 : x
  2. Step 2: Convert to fraction form
    92,762.08/139,113.92 = 30,418.08/x
  3. Step 3: Cross multiply
    92,762.08x = 139,113.92 × 30,418.08
  4. Step 4: Simplify right side
    92,762.08x = 4,231,578,347.67
  5. Step 5: Solve for x
    x = 4,231,578,347.67/92,762.08
  6. Step 6: Final answer
    x = 45,617.54

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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.