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Finding the Fourth Proportional to 171,698.48, 257,215.60 and 96,590.40

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Solution

The fourth proportional to 171,698.48, 257,215.60 and 96,590.40 is: 144,698.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,698.48 : 257,215.60 = 96,590.40 : x
  2. Step 2: Convert to fraction form
    171,698.48/257,215.60 = 96,590.40/x
  3. Step 3: Cross multiply
    171,698.48x = 257,215.60 × 96,590.40
  4. Step 4: Simplify right side
    171,698.48x = 24,844,557,690.24
  5. Step 5: Solve for x
    x = 24,844,557,690.24/171,698.48
  6. Step 6: Final answer
    x = 144,698.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.