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Finding the Fourth Proportional to 117,974.25, 162,804.47 and 67,689.45

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Solution

The fourth proportional to 117,974.25, 162,804.47 and 67,689.45 is: 93,411.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,974.25 : 162,804.47 = 67,689.45 : x
  2. Step 2: Convert to fraction form
    117,974.25/162,804.47 = 67,689.45/x
  3. Step 3: Cross multiply
    117,974.25x = 162,804.47 × 67,689.45
  4. Step 4: Simplify right side
    117,974.25x = 11,020,144,693.39
  5. Step 5: Solve for x
    x = 11,020,144,693.39/117,974.25
  6. Step 6: Final answer
    x = 93,411.44

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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.