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Finding the Fourth Proportional to 82,938.60, 124,383.60 and 29,624.40

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Solution

The fourth proportional to 82,938.60, 124,383.60 and 29,624.40 is: 44,427.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,938.60 : 124,383.60 = 29,624.40 : x
  2. Step 2: Convert to fraction form
    82,938.60/124,383.60 = 29,624.40/x
  3. Step 3: Cross multiply
    82,938.60x = 124,383.60 × 29,624.40
  4. Step 4: Simplify right side
    82,938.60x = 3,684,789,519.84
  5. Step 5: Solve for x
    x = 3,684,789,519.84/82,938.60
  6. Step 6: Final answer
    x = 44,427.92

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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.