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Finding the Fourth Proportional to 104,808.50, 144,631.20 and 57,062.02

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Solution

The fourth proportional to 104,808.50, 144,631.20 and 57,062.02 is: 78,743.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,808.50 : 144,631.20 = 57,062.02 : x
  2. Step 2: Convert to fraction form
    104,808.50/144,631.20 = 57,062.02/x
  3. Step 3: Cross multiply
    104,808.50x = 144,631.20 × 57,062.02
  4. Step 4: Simplify right side
    104,808.50x = 8,252,948,427.02
  5. Step 5: Solve for x
    x = 8,252,948,427.02/104,808.50
  6. Step 6: Final answer
    x = 78,743.12

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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.