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Finding the Fourth Proportional to 127,291.84, 190,942.88 and 33,798.40

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Solution

The fourth proportional to 127,291.84, 190,942.88 and 33,798.40 is: 50,698.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,291.84 : 190,942.88 = 33,798.40 : x
  2. Step 2: Convert to fraction form
    127,291.84/190,942.88 = 33,798.40/x
  3. Step 3: Cross multiply
    127,291.84x = 190,942.88 × 33,798.40
  4. Step 4: Simplify right side
    127,291.84x = 6,453,563,835.39
  5. Step 5: Solve for x
    x = 6,453,563,835.39/127,291.84
  6. Step 6: Final answer
    x = 50,698.96

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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.