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Finding the Fourth Proportional to 103,332.80, 155,042.40 and 33,233.60

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Solution

The fourth proportional to 103,332.80, 155,042.40 and 33,233.60 is: 49,864.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,332.80 : 155,042.40 = 33,233.60 : x
  2. Step 2: Convert to fraction form
    103,332.80/155,042.40 = 33,233.60/x
  3. Step 3: Cross multiply
    103,332.80x = 155,042.40 × 33,233.60
  4. Step 4: Simplify right side
    103,332.80x = 5,152,617,104.64
  5. Step 5: Solve for x
    x = 5,152,617,104.64/103,332.80
  6. Step 6: Final answer
    x = 49,864.29

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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.