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Finding the Fourth Proportional to 92,360.94, 138,512.25 and 39,756.30

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Solution

The fourth proportional to 92,360.94, 138,512.25 and 39,756.30 is: 59,621.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,360.94 : 138,512.25 = 39,756.30 : x
  2. Step 2: Convert to fraction form
    92,360.94/138,512.25 = 39,756.30/x
  3. Step 3: Cross multiply
    92,360.94x = 138,512.25 × 39,756.30
  4. Step 4: Simplify right side
    92,360.94x = 5,506,734,564.68
  5. Step 5: Solve for x
    x = 5,506,734,564.68/92,360.94
  6. Step 6: Final answer
    x = 59,621.90

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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.