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Finding the Fourth Proportional to 125,008.65, 187,294.23 and 104,083.20

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Solution

The fourth proportional to 125,008.65, 187,294.23 and 104,083.20 is: 155,942.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,008.65 : 187,294.23 = 104,083.20 : x
  2. Step 2: Convert to fraction form
    125,008.65/187,294.23 = 104,083.20/x
  3. Step 3: Cross multiply
    125,008.65x = 187,294.23 × 104,083.20
  4. Step 4: Simplify right side
    125,008.65x = 19,494,182,799.94
  5. Step 5: Solve for x
    x = 19,494,182,799.94/125,008.65
  6. Step 6: Final answer
    x = 155,942.67

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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.