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Finding the Fourth Proportional to 144,532.71, 216,804.98 and 39,351.67

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Solution

The fourth proportional to 144,532.71, 216,804.98 and 39,351.67 is: 59,029.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,532.71 : 216,804.98 = 39,351.67 : x
  2. Step 2: Convert to fraction form
    144,532.71/216,804.98 = 39,351.67/x
  3. Step 3: Cross multiply
    144,532.71x = 216,804.98 × 39,351.67
  4. Step 4: Simplify right side
    144,532.71x = 8,531,637,583.68
  5. Step 5: Solve for x
    x = 8,531,637,583.68/144,532.71
  6. Step 6: Final answer
    x = 59,029.11

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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.