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Finding the Fourth Proportional to 118,374.76, 163,362.02 and 68,073.76

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Solution

The fourth proportional to 118,374.76, 163,362.02 and 68,073.76 is: 93,944.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,374.76 : 163,362.02 = 68,073.76 : x
  2. Step 2: Convert to fraction form
    118,374.76/163,362.02 = 68,073.76/x
  3. Step 3: Cross multiply
    118,374.76x = 163,362.02 × 68,073.76
  4. Step 4: Simplify right side
    118,374.76x = 11,120,666,942.60
  5. Step 5: Solve for x
    x = 11,120,666,942.60/118,374.76
  6. Step 6: Final answer
    x = 93,944.58

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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.