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Finding the Fourth Proportional to 313,971.46, 470,973.52 and 103,625.80

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Solution

The fourth proportional to 313,971.46, 470,973.52 and 103,625.80 is: 155,444.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,971.46 : 470,973.52 = 103,625.80 : x
  2. Step 2: Convert to fraction form
    313,971.46/470,973.52 = 103,625.80/x
  3. Step 3: Cross multiply
    313,971.46x = 470,973.52 × 103,625.80
  4. Step 4: Simplify right side
    313,971.46x = 48,805,007,788.82
  5. Step 5: Solve for x
    x = 48,805,007,788.82/313,971.46
  6. Step 6: Final answer
    x = 155,444.09

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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.