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Finding the Fourth Proportional to 129,554.88, 177,620.44 and 127,193.28

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Solution

The fourth proportional to 129,554.88, 177,620.44 and 127,193.28 is: 174,382.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,554.88 : 177,620.44 = 127,193.28 : x
  2. Step 2: Convert to fraction form
    129,554.88/177,620.44 = 127,193.28/x
  3. Step 3: Cross multiply
    129,554.88x = 177,620.44 × 127,193.28
  4. Step 4: Simplify right side
    129,554.88x = 22,592,126,358.64
  5. Step 5: Solve for x
    x = 22,592,126,358.64/129,554.88
  6. Step 6: Final answer
    x = 174,382.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.