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Finding the Fourth Proportional to 99,362.76, 149,045.22 and 29,243.40

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Solution

The fourth proportional to 99,362.76, 149,045.22 and 29,243.40 is: 43,865.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,362.76 : 149,045.22 = 29,243.40 : x
  2. Step 2: Convert to fraction form
    99,362.76/149,045.22 = 29,243.40/x
  3. Step 3: Cross multiply
    99,362.76x = 149,045.22 × 29,243.40
  4. Step 4: Simplify right side
    99,362.76x = 4,358,588,986.55
  5. Step 5: Solve for x
    x = 4,358,588,986.55/99,362.76
  6. Step 6: Final answer
    x = 43,865.42

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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.