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Finding the Fourth Proportional to 478,009.44, 717,009.28 and 123,022.08

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Solution

The fourth proportional to 478,009.44, 717,009.28 and 123,022.08 is: 184,531.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,009.44 : 717,009.28 = 123,022.08 : x
  2. Step 2: Convert to fraction form
    478,009.44/717,009.28 = 123,022.08/x
  3. Step 3: Cross multiply
    478,009.44x = 717,009.28 × 123,022.08
  4. Step 4: Simplify right side
    478,009.44x = 88,207,973,004.90
  5. Step 5: Solve for x
    x = 88,207,973,004.90/478,009.44
  6. Step 6: Final answer
    x = 184,531.86

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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.