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Finding the Fourth Proportional to 226,590.30, 312,698.25 and 124,620.30

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Solution

The fourth proportional to 226,590.30, 312,698.25 and 124,620.30 is: 171,978.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,590.30 : 312,698.25 = 124,620.30 : x
  2. Step 2: Convert to fraction form
    226,590.30/312,698.25 = 124,620.30/x
  3. Step 3: Cross multiply
    226,590.30x = 312,698.25 × 124,620.30
  4. Step 4: Simplify right side
    226,590.30x = 38,968,549,724.48
  5. Step 5: Solve for x
    x = 38,968,549,724.48/226,590.30
  6. Step 6: Final answer
    x = 171,978.01

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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.