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Finding the Fourth Proportional to 95,461.21, 132,021.90 and 83,503.78

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Solution

The fourth proportional to 95,461.21, 132,021.90 and 83,503.78 is: 115,484.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,461.21 : 132,021.90 = 83,503.78 : x
  2. Step 2: Convert to fraction form
    95,461.21/132,021.90 = 83,503.78/x
  3. Step 3: Cross multiply
    95,461.21x = 132,021.90 × 83,503.78
  4. Step 4: Simplify right side
    95,461.21x = 11,024,327,032.67
  5. Step 5: Solve for x
    x = 11,024,327,032.67/95,461.21
  6. Step 6: Final answer
    x = 115,484.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.