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Finding the Fourth Proportional to 161,806.60, 242,594.70 and 61,928.20

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Solution

The fourth proportional to 161,806.60, 242,594.70 and 61,928.20 is: 92,848.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,806.60 : 242,594.70 = 61,928.20 : x
  2. Step 2: Convert to fraction form
    161,806.60/242,594.70 = 61,928.20/x
  3. Step 3: Cross multiply
    161,806.60x = 242,594.70 × 61,928.20
  4. Step 4: Simplify right side
    161,806.60x = 15,023,453,100.54
  5. Step 5: Solve for x
    x = 15,023,453,100.54/161,806.60
  6. Step 6: Final answer
    x = 92,848.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.