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Finding the Fourth Proportional to 369,402.69, 554,135.49 and 116,615.55

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Solution

The fourth proportional to 369,402.69, 554,135.49 and 116,615.55 is: 174,933.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,402.69 : 554,135.49 = 116,615.55 : x
  2. Step 2: Convert to fraction form
    369,402.69/554,135.49 = 116,615.55/x
  3. Step 3: Cross multiply
    369,402.69x = 554,135.49 × 116,615.55
  4. Step 4: Simplify right side
    369,402.69x = 64,620,814,940.87
  5. Step 5: Solve for x
    x = 64,620,814,940.87/369,402.69
  6. Step 6: Final answer
    x = 174,933.25

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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.