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Finding the Fourth Proportional to 171,753.60, 256,901.40 and 154,111.80

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Solution

The fourth proportional to 171,753.60, 256,901.40 and 154,111.80 is: 230,513.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,753.60 : 256,901.40 = 154,111.80 : x
  2. Step 2: Convert to fraction form
    171,753.60/256,901.40 = 154,111.80/x
  3. Step 3: Cross multiply
    171,753.60x = 256,901.40 × 154,111.80
  4. Step 4: Simplify right side
    171,753.60x = 39,591,537,176.52
  5. Step 5: Solve for x
    x = 39,591,537,176.52/171,753.60
  6. Step 6: Final answer
    x = 230,513.58

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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.