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Finding the Fourth Proportional to 92,959.56, 139,437.72 and 30,630.60

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Solution

The fourth proportional to 92,959.56, 139,437.72 and 30,630.60 is: 45,945.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,959.56 : 139,437.72 = 30,630.60 : x
  2. Step 2: Convert to fraction form
    92,959.56/139,437.72 = 30,630.60/x
  3. Step 3: Cross multiply
    92,959.56x = 139,437.72 × 30,630.60
  4. Step 4: Simplify right side
    92,959.56x = 4,271,061,026.23
  5. Step 5: Solve for x
    x = 4,271,061,026.23/92,959.56
  6. Step 6: Final answer
    x = 45,945.37

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1.5x scale

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.