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Finding the Fourth Proportional to 127,798.70, 191,698.05 and 34,313.90

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Solution

The fourth proportional to 127,798.70, 191,698.05 and 34,313.90 is: 51,470.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,798.70 : 191,698.05 = 34,313.90 : x
  2. Step 2: Convert to fraction form
    127,798.70/191,698.05 = 34,313.90/x
  3. Step 3: Cross multiply
    127,798.70x = 191,698.05 × 34,313.90
  4. Step 4: Simplify right side
    127,798.70x = 6,577,907,717.90
  5. Step 5: Solve for x
    x = 6,577,907,717.90/127,798.70
  6. Step 6: Final answer
    x = 51,470.85

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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.