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Finding the Fourth Proportional to 127,018.68, 190,375.20 and 46,992.84

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Solution

The fourth proportional to 127,018.68, 190,375.20 and 46,992.84 is: 70,432.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,018.68 : 190,375.20 = 46,992.84 : x
  2. Step 2: Convert to fraction form
    127,018.68/190,375.20 = 46,992.84/x
  3. Step 3: Cross multiply
    127,018.68x = 190,375.20 × 46,992.84
  4. Step 4: Simplify right side
    127,018.68x = 8,946,271,313.57
  5. Step 5: Solve for x
    x = 8,946,271,313.57/127,018.68
  6. Step 6: Final answer
    x = 70,432.72

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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.