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Finding the Fourth Proportional to 98,781.60, 148,186.80 and 32,224.80

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Solution

The fourth proportional to 98,781.60, 148,186.80 and 32,224.80 is: 48,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,781.60 : 148,186.80 = 32,224.80 : x
  2. Step 2: Convert to fraction form
    98,781.60/148,186.80 = 32,224.80/x
  3. Step 3: Cross multiply
    98,781.60x = 148,186.80 × 32,224.80
  4. Step 4: Simplify right side
    98,781.60x = 4,775,289,992.64
  5. Step 5: Solve for x
    x = 4,775,289,992.64/98,781.60
  6. Step 6: Final answer
    x = 48,341.90

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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.