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Finding the Fourth Proportional to 127,504.90, 190,819.95 and 117,007.30

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Solution

The fourth proportional to 127,504.90, 190,819.95 and 117,007.30 is: 175,109.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,504.90 : 190,819.95 = 117,007.30 : x
  2. Step 2: Convert to fraction form
    127,504.90/190,819.95 = 117,007.30/x
  3. Step 3: Cross multiply
    127,504.90x = 190,819.95 × 117,007.30
  4. Step 4: Simplify right side
    127,504.90x = 22,327,327,135.64
  5. Step 5: Solve for x
    x = 22,327,327,135.64/127,504.90
  6. Step 6: Final answer
    x = 175,109.56

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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.