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Finding the Fourth Proportional to 215,955.34, 298,024.68 and 120,459.97

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Solution

The fourth proportional to 215,955.34, 298,024.68 and 120,459.97 is: 166,238.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,955.34 : 298,024.68 = 120,459.97 : x
  2. Step 2: Convert to fraction form
    215,955.34/298,024.68 = 120,459.97/x
  3. Step 3: Cross multiply
    215,955.34x = 298,024.68 × 120,459.97
  4. Step 4: Simplify right side
    215,955.34x = 35,900,044,012.06
  5. Step 5: Solve for x
    x = 35,900,044,012.06/215,955.34
  6. Step 6: Final answer
    x = 166,238.28

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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.