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Finding the Fourth Proportional to 93,266.02, 128,750.07 and 55,012.56

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Solution

The fourth proportional to 93,266.02, 128,750.07 and 55,012.56 is: 75,942.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,266.02 : 128,750.07 = 55,012.56 : x
  2. Step 2: Convert to fraction form
    93,266.02/128,750.07 = 55,012.56/x
  3. Step 3: Cross multiply
    93,266.02x = 128,750.07 × 55,012.56
  4. Step 4: Simplify right side
    93,266.02x = 7,082,870,950.88
  5. Step 5: Solve for x
    x = 7,082,870,950.88/93,266.02
  6. Step 6: Final answer
    x = 75,942.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.