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Finding the Fourth Proportional to 127,187.40, 190,788.72 and 33,692.88

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Solution

The fourth proportional to 127,187.40, 190,788.72 and 33,692.88 is: 50,541.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,187.40 : 190,788.72 = 33,692.88 : x
  2. Step 2: Convert to fraction form
    127,187.40/190,788.72 = 33,692.88/x
  3. Step 3: Cross multiply
    127,187.40x = 190,788.72 × 33,692.88
  4. Step 4: Simplify right side
    127,187.40x = 6,428,221,448.31
  5. Step 5: Solve for x
    x = 6,428,221,448.31/127,187.40
  6. Step 6: Final answer
    x = 50,541.34

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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.