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Finding the Fourth Proportional to 153,354.53, 211,638.92 and 92,930.46

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Solution

The fourth proportional to 153,354.53, 211,638.92 and 92,930.46 is: 128,249.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,354.53 : 211,638.92 = 92,930.46 : x
  2. Step 2: Convert to fraction form
    153,354.53/211,638.92 = 92,930.46/x
  3. Step 3: Cross multiply
    153,354.53x = 211,638.92 × 92,930.46
  4. Step 4: Simplify right side
    153,354.53x = 19,667,701,724.85
  5. Step 5: Solve for x
    x = 19,667,701,724.85/153,354.53
  6. Step 6: Final answer
    x = 128,249.89

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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.