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Finding the Fourth Proportional to 160,696.02, 221,737.20 and 89,076

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Solution

The fourth proportional to 160,696.02, 221,737.20 and 89,076 is: 122,911.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,696.02 : 221,737.20 = 89,076 : x
  2. Step 2: Convert to fraction form
    160,696.02/221,737.20 = 89,076/x
  3. Step 3: Cross multiply
    160,696.02x = 221,737.20 × 89,076
  4. Step 4: Simplify right side
    160,696.02x = 19,751,462,827.20
  5. Step 5: Solve for x
    x = 19,751,462,827.20/160,696.02
  6. Step 6: Final answer
    x = 122,911.96

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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.