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Finding the Fourth Proportional to 144,893.99, 217,317.65 and 39,688.35

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Solution

The fourth proportional to 144,893.99, 217,317.65 and 39,688.35 is: 59,526.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,893.99 : 217,317.65 = 39,688.35 : x
  2. Step 2: Convert to fraction form
    144,893.99/217,317.65 = 39,688.35/x
  3. Step 3: Cross multiply
    144,893.99x = 217,317.65 × 39,688.35
  4. Step 4: Simplify right side
    144,893.99x = 8,624,978,755.94
  5. Step 5: Solve for x
    x = 8,624,978,755.94/144,893.99
  6. Step 6: Final answer
    x = 59,526.13

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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.