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Finding the Fourth Proportional to 125,627.80, 188,441.70 and 117,851.80

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Solution

The fourth proportional to 125,627.80, 188,441.70 and 117,851.80 is: 176,777.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,627.80 : 188,441.70 = 117,851.80 : x
  2. Step 2: Convert to fraction form
    125,627.80/188,441.70 = 117,851.80/x
  3. Step 3: Cross multiply
    125,627.80x = 188,441.70 × 117,851.80
  4. Step 4: Simplify right side
    125,627.80x = 22,208,193,540.06
  5. Step 5: Solve for x
    x = 22,208,193,540.06/125,627.80
  6. Step 6: Final answer
    x = 176,777.70

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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.