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Finding the Fourth Proportional to 85,368.54, 128,069.19 and 32,773.86

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Solution

The fourth proportional to 85,368.54, 128,069.19 and 32,773.86 is: 49,167.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,368.54 : 128,069.19 = 32,773.86 : x
  2. Step 2: Convert to fraction form
    85,368.54/128,069.19 = 32,773.86/x
  3. Step 3: Cross multiply
    85,368.54x = 128,069.19 × 32,773.86
  4. Step 4: Simplify right side
    85,368.54x = 4,197,321,703.37
  5. Step 5: Solve for x
    x = 4,197,321,703.37/85,368.54
  6. Step 6: Final answer
    x = 49,167.08

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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.