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Finding the Fourth Proportional to 102,189.91, 154,244.67 and 102,189.91

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Solution

The fourth proportional to 102,189.91, 154,244.67 and 102,189.91 is: 154,244.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,189.91 : 154,244.67 = 102,189.91 : x
  2. Step 2: Convert to fraction form
    102,189.91/154,244.67 = 102,189.91/x
  3. Step 3: Cross multiply
    102,189.91x = 154,244.67 × 102,189.91
  4. Step 4: Simplify right side
    102,189.91x = 15,762,248,945.28
  5. Step 5: Solve for x
    x = 15,762,248,945.28/102,189.91
  6. Step 6: Final answer
    x = 154,244.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.