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Finding the Fourth Proportional to 127,800.58, 176,362.43 and 69,657.82

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Solution

The fourth proportional to 127,800.58, 176,362.43 and 69,657.82 is: 96,126.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,800.58 : 176,362.43 = 69,657.82 : x
  2. Step 2: Convert to fraction form
    127,800.58/176,362.43 = 69,657.82/x
  3. Step 3: Cross multiply
    127,800.58x = 176,362.43 × 69,657.82
  4. Step 4: Simplify right side
    127,800.58x = 12,285,022,136.94
  5. Step 5: Solve for x
    x = 12,285,022,136.94/127,800.58
  6. Step 6: Final answer
    x = 96,126.50

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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.