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Finding the Fourth Proportional to 99,632.40, 149,477.40 and 29,513.04

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Solution

The fourth proportional to 99,632.40, 149,477.40 and 29,513.04 is: 44,278.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,632.40 : 149,477.40 = 29,513.04 : x
  2. Step 2: Convert to fraction form
    99,632.40/149,477.40 = 29,513.04/x
  3. Step 3: Cross multiply
    99,632.40x = 149,477.40 × 29,513.04
  4. Step 4: Simplify right side
    99,632.40x = 4,411,532,485.30
  5. Step 5: Solve for x
    x = 4,411,532,485.30/99,632.40
  6. Step 6: Final answer
    x = 44,278.09

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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.