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Finding the Fourth Proportional to 212,999.96, 293,954.46 and 123,575.96

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Solution

The fourth proportional to 212,999.96, 293,954.46 and 123,575.96 is: 170,543.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,999.96 : 293,954.46 = 123,575.96 : x
  2. Step 2: Convert to fraction form
    212,999.96/293,954.46 = 123,575.96/x
  3. Step 3: Cross multiply
    212,999.96x = 293,954.46 × 123,575.96
  4. Step 4: Simplify right side
    212,999.96x = 36,325,704,590.78
  5. Step 5: Solve for x
    x = 36,325,704,590.78/212,999.96
  6. Step 6: Final answer
    x = 170,543.25

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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.