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Finding the Fourth Proportional to 171,005.60, 256,508.40 and 153,290.90

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Solution

The fourth proportional to 171,005.60, 256,508.40 and 153,290.90 is: 229,936.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,005.60 : 256,508.40 = 153,290.90 : x
  2. Step 2: Convert to fraction form
    171,005.60/256,508.40 = 153,290.90/x
  3. Step 3: Cross multiply
    171,005.60x = 256,508.40 × 153,290.90
  4. Step 4: Simplify right side
    171,005.60x = 39,320,403,493.56
  5. Step 5: Solve for x
    x = 39,320,403,493.56/171,005.60
  6. Step 6: Final answer
    x = 229,936.35

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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.