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Finding the Fourth Proportional to 85,026.76, 127,485.46 and 40,652.53

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Solution

The fourth proportional to 85,026.76, 127,485.46 and 40,652.53 is: 60,952.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,026.76 : 127,485.46 = 40,652.53 : x
  2. Step 2: Convert to fraction form
    85,026.76/127,485.46 = 40,652.53/x
  3. Step 3: Cross multiply
    85,026.76x = 127,485.46 × 40,652.53
  4. Step 4: Simplify right side
    85,026.76x = 5,182,606,487.21
  5. Step 5: Solve for x
    x = 5,182,606,487.21/85,026.76
  6. Step 6: Final answer
    x = 60,952.65

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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.