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Finding the Fourth Proportional to 98,781.56, 148,177.08 and 32,221.56

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Solution

The fourth proportional to 98,781.56, 148,177.08 and 32,221.56 is: 48,333.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,781.56 : 148,177.08 = 32,221.56 : x
  2. Step 2: Convert to fraction form
    98,781.56/148,177.08 = 32,221.56/x
  3. Step 3: Cross multiply
    98,781.56x = 148,177.08 × 32,221.56
  4. Step 4: Simplify right side
    98,781.56x = 4,774,496,673.84
  5. Step 5: Solve for x
    x = 4,774,496,673.84/98,781.56
  6. Step 6: Final answer
    x = 48,333.89

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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.