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Finding the Fourth Proportional to 127,649.63, 191,459.86 and 34,162.67

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Solution

The fourth proportional to 127,649.63, 191,459.86 and 34,162.67 is: 51,240.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,649.63 : 191,459.86 = 34,162.67 : x
  2. Step 2: Convert to fraction form
    127,649.63/191,459.86 = 34,162.67/x
  3. Step 3: Cross multiply
    127,649.63x = 191,459.86 × 34,162.67
  4. Step 4: Simplify right side
    127,649.63x = 6,540,780,015.43
  5. Step 5: Solve for x
    x = 6,540,780,015.43/127,649.63
  6. Step 6: Final answer
    x = 51,240.10

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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.