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Finding the Fourth Proportional to 98,190.40, 147,285.60 and 53,953.60

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Solution

The fourth proportional to 98,190.40, 147,285.60 and 53,953.60 is: 80,930.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,190.40 : 147,285.60 = 53,953.60 : x
  2. Step 2: Convert to fraction form
    98,190.40/147,285.60 = 53,953.60/x
  3. Step 3: Cross multiply
    98,190.40x = 147,285.60 × 53,953.60
  4. Step 4: Simplify right side
    98,190.40x = 7,946,588,348.16
  5. Step 5: Solve for x
    x = 7,946,588,348.16/98,190.40
  6. Step 6: Final answer
    x = 80,930.40

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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.