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Finding the Fourth Proportional to 100,362.40, 150,543.60 and 67,098.40

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Solution

The fourth proportional to 100,362.40, 150,543.60 and 67,098.40 is: 100,647.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,362.40 : 150,543.60 = 67,098.40 : x
  2. Step 2: Convert to fraction form
    100,362.40/150,543.60 = 67,098.40/x
  3. Step 3: Cross multiply
    100,362.40x = 150,543.60 × 67,098.40
  4. Step 4: Simplify right side
    100,362.40x = 10,101,234,690.24
  5. Step 5: Solve for x
    x = 10,101,234,690.24/100,362.40
  6. Step 6: Final answer
    x = 100,647.60

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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.