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Finding the Fourth Proportional to 173,300.80, 260,037.60 and 98,478.40

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Solution

The fourth proportional to 173,300.80, 260,037.60 and 98,478.40 is: 147,766.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,300.80 : 260,037.60 = 98,478.40 : x
  2. Step 2: Convert to fraction form
    173,300.80/260,037.60 = 98,478.40/x
  3. Step 3: Cross multiply
    173,300.80x = 260,037.60 × 98,478.40
  4. Step 4: Simplify right side
    173,300.80x = 25,608,086,787.84
  5. Step 5: Solve for x
    x = 25,608,086,787.84/173,300.80
  6. Step 6: Final answer
    x = 147,766.70

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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.