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Finding the Fourth Proportional to 103,282.49, 154,967.48 and 56,480.69

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Solution

The fourth proportional to 103,282.49, 154,967.48 and 56,480.69 is: 84,744.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,282.49 : 154,967.48 = 56,480.69 : x
  2. Step 2: Convert to fraction form
    103,282.49/154,967.48 = 56,480.69/x
  3. Step 3: Cross multiply
    103,282.49x = 154,967.48 × 56,480.69
  4. Step 4: Simplify right side
    103,282.49x = 8,752,670,514.78
  5. Step 5: Solve for x
    x = 8,752,670,514.78/103,282.49
  6. Step 6: Final answer
    x = 84,744.96

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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.