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Finding the Fourth Proportional to 111,676.70, 154,110.66 and 60,687.20

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Solution

The fourth proportional to 111,676.70, 154,110.66 and 60,687.20 is: 83,746.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,676.70 : 154,110.66 = 60,687.20 : x
  2. Step 2: Convert to fraction form
    111,676.70/154,110.66 = 60,687.20/x
  3. Step 3: Cross multiply
    111,676.70x = 154,110.66 × 60,687.20
  4. Step 4: Simplify right side
    111,676.70x = 9,352,544,445.55
  5. Step 5: Solve for x
    x = 9,352,544,445.55/111,676.70
  6. Step 6: Final answer
    x = 83,746.60

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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.