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Finding the Fourth Proportional to 104,125.14, 143,676.45 and 61,676.82

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Solution

The fourth proportional to 104,125.14, 143,676.45 and 61,676.82 is: 85,104.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,125.14 : 143,676.45 = 61,676.82 : x
  2. Step 2: Convert to fraction form
    104,125.14/143,676.45 = 61,676.82/x
  3. Step 3: Cross multiply
    104,125.14x = 143,676.45 × 61,676.82
  4. Step 4: Simplify right side
    104,125.14x = 8,861,506,544.89
  5. Step 5: Solve for x
    x = 8,861,506,544.89/104,125.14
  6. Step 6: Final answer
    x = 85,104.39

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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.