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Finding the Fourth Proportional to 127,970.55, 176,655.96 and 82,670.58

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Solution

The fourth proportional to 127,970.55, 176,655.96 and 82,670.58 is: 114,121.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,970.55 : 176,655.96 = 82,670.58 : x
  2. Step 2: Convert to fraction form
    127,970.55/176,655.96 = 82,670.58/x
  3. Step 3: Cross multiply
    127,970.55x = 176,655.96 × 82,670.58
  4. Step 4: Simplify right side
    127,970.55x = 14,604,250,673.66
  5. Step 5: Solve for x
    x = 14,604,250,673.66/127,970.55
  6. Step 6: Final answer
    x = 114,121.97

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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.