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Finding the Fourth Proportional to 90,615.69, 125,046.18 and 50,332.03

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Solution

The fourth proportional to 90,615.69, 125,046.18 and 50,332.03 is: 69,456.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,615.69 : 125,046.18 = 50,332.03 : x
  2. Step 2: Convert to fraction form
    90,615.69/125,046.18 = 50,332.03/x
  3. Step 3: Cross multiply
    90,615.69x = 125,046.18 × 50,332.03
  4. Step 4: Simplify right side
    90,615.69x = 6,293,827,770.53
  5. Step 5: Solve for x
    x = 6,293,827,770.53/90,615.69
  6. Step 6: Final answer
    x = 69,456.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.