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Finding the Fourth Proportional to 124,008.60, 185,808.10 and 105,576.60

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Solution

The fourth proportional to 124,008.60, 185,808.10 and 105,576.60 is: 158,190.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,008.60 : 185,808.10 = 105,576.60 : x
  2. Step 2: Convert to fraction form
    124,008.60/185,808.10 = 105,576.60/x
  3. Step 3: Cross multiply
    124,008.60x = 185,808.10 × 105,576.60
  4. Step 4: Simplify right side
    124,008.60x = 19,616,987,450.46
  5. Step 5: Solve for x
    x = 19,616,987,450.46/124,008.60
  6. Step 6: Final answer
    x = 158,190.54

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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.