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Finding the Fourth Proportional to 172,778.60, 259,283.10 and 97,898.60

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Solution

The fourth proportional to 172,778.60, 259,283.10 and 97,898.60 is: 146,913.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,778.60 : 259,283.10 = 97,898.60 : x
  2. Step 2: Convert to fraction form
    172,778.60/259,283.10 = 97,898.60/x
  3. Step 3: Cross multiply
    172,778.60x = 259,283.10 × 97,898.60
  4. Step 4: Simplify right side
    172,778.60x = 25,383,452,493.66
  5. Step 5: Solve for x
    x = 25,383,452,493.66/172,778.60
  6. Step 6: Final answer
    x = 146,913.17

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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.