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Finding the Fourth Proportional to 85,133.94, 117,487.94 and 52,886.33

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Solution

The fourth proportional to 85,133.94, 117,487.94 and 52,886.33 is: 72,985.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,133.94 : 117,487.94 = 52,886.33 : x
  2. Step 2: Convert to fraction form
    85,133.94/117,487.94 = 52,886.33/x
  3. Step 3: Cross multiply
    85,133.94x = 117,487.94 × 52,886.33
  4. Step 4: Simplify right side
    85,133.94x = 6,213,505,965.86
  5. Step 5: Solve for x
    x = 6,213,505,965.86/85,133.94
  6. Step 6: Final answer
    x = 72,985.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.