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Finding the Fourth Proportional to 127,546.70, 191,101.35 and 83,150.60

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Solution

The fourth proportional to 127,546.70, 191,101.35 and 83,150.60 is: 124,583.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,546.70 : 191,101.35 = 83,150.60 : x
  2. Step 2: Convert to fraction form
    127,546.70/191,101.35 = 83,150.60/x
  3. Step 3: Cross multiply
    127,546.70x = 191,101.35 × 83,150.60
  4. Step 4: Simplify right side
    127,546.70x = 15,890,191,913.31
  5. Step 5: Solve for x
    x = 15,890,191,913.31/127,546.70
  6. Step 6: Final answer
    x = 124,583.32

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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.