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Finding the Fourth Proportional to 127,605.66, 176,092.12 and 71,015.82

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Solution

The fourth proportional to 127,605.66, 176,092.12 and 71,015.82 is: 97,999.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,605.66 : 176,092.12 = 71,015.82 : x
  2. Step 2: Convert to fraction form
    127,605.66/176,092.12 = 71,015.82/x
  3. Step 3: Cross multiply
    127,605.66x = 176,092.12 × 71,015.82
  4. Step 4: Simplify right side
    127,605.66x = 12,505,326,297.34
  5. Step 5: Solve for x
    x = 12,505,326,297.34/127,605.66
  6. Step 6: Final answer
    x = 97,999.78

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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.