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Finding the Fourth Proportional to 100,847.80, 151,271.70 and 65,596.60

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Solution

The fourth proportional to 100,847.80, 151,271.70 and 65,596.60 is: 98,394.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,847.80 : 151,271.70 = 65,596.60 : x
  2. Step 2: Convert to fraction form
    100,847.80/151,271.70 = 65,596.60/x
  3. Step 3: Cross multiply
    100,847.80x = 151,271.70 × 65,596.60
  4. Step 4: Simplify right side
    100,847.80x = 9,922,909,196.22
  5. Step 5: Solve for x
    x = 9,922,909,196.22/100,847.80
  6. Step 6: Final answer
    x = 98,394.90

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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.