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Finding the Fourth Proportional to 214,553.63, 295,878.06 and 128,498.83

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Solution

The fourth proportional to 214,553.63, 295,878.06 and 128,498.83 is: 177,205.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,553.63 : 295,878.06 = 128,498.83 : x
  2. Step 2: Convert to fraction form
    214,553.63/295,878.06 = 128,498.83/x
  3. Step 3: Cross multiply
    214,553.63x = 295,878.06 × 128,498.83
  4. Step 4: Simplify right side
    214,553.63x = 38,019,983,890.18
  5. Step 5: Solve for x
    x = 38,019,983,890.18/214,553.63
  6. Step 6: Final answer
    x = 177,205.04

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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.