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Finding the Fourth Proportional to 160,136.07, 220,978.17 and 88,511.82

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Solution

The fourth proportional to 160,136.07, 220,978.17 and 88,511.82 is: 122,141.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,136.07 : 220,978.17 = 88,511.82 : x
  2. Step 2: Convert to fraction form
    160,136.07/220,978.17 = 88,511.82/x
  3. Step 3: Cross multiply
    160,136.07x = 220,978.17 × 88,511.82
  4. Step 4: Simplify right side
    160,136.07x = 19,559,180,006.97
  5. Step 5: Solve for x
    x = 19,559,180,006.97/160,136.07
  6. Step 6: Final answer
    x = 122,141.00

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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.