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Finding the Fourth Proportional to 85,228.79, 127,885.41 and 62,683.85

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Solution

The fourth proportional to 85,228.79, 127,885.41 and 62,683.85 is: 94,056.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,228.79 : 127,885.41 = 62,683.85 : x
  2. Step 2: Convert to fraction form
    85,228.79/127,885.41 = 62,683.85/x
  3. Step 3: Cross multiply
    85,228.79x = 127,885.41 × 62,683.85
  4. Step 4: Simplify right side
    85,228.79x = 8,016,350,177.34
  5. Step 5: Solve for x
    x = 8,016,350,177.34/85,228.79
  6. Step 6: Final answer
    x = 94,056.84

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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.