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Finding the Fourth Proportional to 220,783.33, 304,663.62 and 125,290.02

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Solution

The fourth proportional to 220,783.33, 304,663.62 and 125,290.02 is: 172,890.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,783.33 : 304,663.62 = 125,290.02 : x
  2. Step 2: Convert to fraction form
    220,783.33/304,663.62 = 125,290.02/x
  3. Step 3: Cross multiply
    220,783.33x = 304,663.62 × 125,290.02
  4. Step 4: Simplify right side
    220,783.33x = 38,171,310,416.62
  5. Step 5: Solve for x
    x = 38,171,310,416.62/220,783.33
  6. Step 6: Final answer
    x = 172,890.37

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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.