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Finding the Fourth Proportional to 214,554.63, 295,879.43 and 128,499.83

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Solution

The fourth proportional to 214,554.63, 295,879.43 and 128,499.83 is: 177,206.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,554.63 : 295,879.43 = 128,499.83 : x
  2. Step 2: Convert to fraction form
    214,554.63/295,879.43 = 128,499.83/x
  3. Step 3: Cross multiply
    214,554.63x = 295,879.43 × 128,499.83
  4. Step 4: Simplify right side
    214,554.63x = 38,020,456,455.50
  5. Step 5: Solve for x
    x = 38,020,456,455.50/214,554.63
  6. Step 6: Final answer
    x = 177,206.41

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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.