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Finding the Fourth Proportional to 113,912.60, 170,868.90 and 47,330.60

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Solution

The fourth proportional to 113,912.60, 170,868.90 and 47,330.60 is: 70,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,912.60 : 170,868.90 = 47,330.60 : x
  2. Step 2: Convert to fraction form
    113,912.60/170,868.90 = 47,330.60/x
  3. Step 3: Cross multiply
    113,912.60x = 170,868.90 × 47,330.60
  4. Step 4: Simplify right side
    113,912.60x = 8,087,327,558.34
  5. Step 5: Solve for x
    x = 8,087,327,558.34/113,912.60
  6. Step 6: Final answer
    x = 70,995.90

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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.