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Finding the Fourth Proportional to 97,960.90, 146,940.72 and 47,300.80

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Solution

The fourth proportional to 97,960.90, 146,940.72 and 47,300.80 is: 70,950.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,960.90 : 146,940.72 = 47,300.80 : x
  2. Step 2: Convert to fraction form
    97,960.90/146,940.72 = 47,300.80/x
  3. Step 3: Cross multiply
    97,960.90x = 146,940.72 × 47,300.80
  4. Step 4: Simplify right side
    97,960.90x = 6,950,413,608.58
  5. Step 5: Solve for x
    x = 6,950,413,608.58/97,960.90
  6. Step 6: Final answer
    x = 70,950.90

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1.5x scale

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.