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Finding the Fourth Proportional to 103,636.50, 155,458.80 and 32,607.60

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Solution

The fourth proportional to 103,636.50, 155,458.80 and 32,607.60 is: 48,912.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,636.50 : 155,458.80 = 32,607.60 : x
  2. Step 2: Convert to fraction form
    103,636.50/155,458.80 = 32,607.60/x
  3. Step 3: Cross multiply
    103,636.50x = 155,458.80 × 32,607.60
  4. Step 4: Simplify right side
    103,636.50x = 5,069,138,366.88
  5. Step 5: Solve for x
    x = 5,069,138,366.88/103,636.50
  6. Step 6: Final answer
    x = 48,912.67

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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.