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Finding the Fourth Proportional to 127,960.32, 176,583.60 and 71,372.64

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Solution

The fourth proportional to 127,960.32, 176,583.60 and 71,372.64 is: 98,493.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,960.32 : 176,583.60 = 71,372.64 : x
  2. Step 2: Convert to fraction form
    127,960.32/176,583.60 = 71,372.64/x
  3. Step 3: Cross multiply
    127,960.32x = 176,583.60 × 71,372.64
  4. Step 4: Simplify right side
    127,960.32x = 12,603,237,712.70
  5. Step 5: Solve for x
    x = 12,603,237,712.70/127,960.32
  6. Step 6: Final answer
    x = 98,493.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.