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Finding the Fourth Proportional to 171,091.60, 256,560.60 and 65,875.60

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Solution

The fourth proportional to 171,091.60, 256,560.60 and 65,875.60 is: 98,783.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,091.60 : 256,560.60 = 65,875.60 : x
  2. Step 2: Convert to fraction form
    171,091.60/256,560.60 = 65,875.60/x
  3. Step 3: Cross multiply
    171,091.60x = 256,560.60 × 65,875.60
  4. Step 4: Simplify right side
    171,091.60x = 16,901,083,461.36
  5. Step 5: Solve for x
    x = 16,901,083,461.36/171,091.60
  6. Step 6: Final answer
    x = 98,783.83

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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.