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Finding the Fourth Proportional to 125,059.83, 172,608.08 and 84,786.54

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Solution

The fourth proportional to 125,059.83, 172,608.08 and 84,786.54 is: 117,022.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,059.83 : 172,608.08 = 84,786.54 : x
  2. Step 2: Convert to fraction form
    125,059.83/172,608.08 = 84,786.54/x
  3. Step 3: Cross multiply
    125,059.83x = 172,608.08 × 84,786.54
  4. Step 4: Simplify right side
    125,059.83x = 14,634,841,879.24
  5. Step 5: Solve for x
    x = 14,634,841,879.24/125,059.83
  6. Step 6: Final answer
    x = 117,022.72

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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.