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Finding the Fourth Proportional to 102,191.91, 154,247.69 and 102,191.91

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Solution

The fourth proportional to 102,191.91, 154,247.69 and 102,191.91 is: 154,247.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,191.91 : 154,247.69 = 102,191.91 : x
  2. Step 2: Convert to fraction form
    102,191.91/154,247.69 = 102,191.91/x
  3. Step 3: Cross multiply
    102,191.91x = 154,247.69 × 102,191.91
  4. Step 4: Simplify right side
    102,191.91x = 15,762,866,054.19
  5. Step 5: Solve for x
    x = 15,762,866,054.19/102,191.91
  6. Step 6: Final answer
    x = 154,247.69

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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.