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Finding the Fourth Proportional to 171,303.92, 256,808.22 and 66,196.64

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Solution

The fourth proportional to 171,303.92, 256,808.22 and 66,196.64 is: 99,237.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,303.92 : 256,808.22 = 66,196.64 : x
  2. Step 2: Convert to fraction form
    171,303.92/256,808.22 = 66,196.64/x
  3. Step 3: Cross multiply
    171,303.92x = 256,808.22 × 66,196.64
  4. Step 4: Simplify right side
    171,303.92x = 16,999,841,288.38
  5. Step 5: Solve for x
    x = 16,999,841,288.38/171,303.92
  6. Step 6: Final answer
    x = 99,237.90

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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.