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Finding the Fourth Proportional to 338,577.20, 507,507.73 and 125,208.01

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Solution

The fourth proportional to 338,577.20, 507,507.73 and 125,208.01 is: 187,679.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,577.20 : 507,507.73 = 125,208.01 : x
  2. Step 2: Convert to fraction form
    338,577.20/507,507.73 = 125,208.01/x
  3. Step 3: Cross multiply
    338,577.20x = 507,507.73 × 125,208.01
  4. Step 4: Simplify right side
    338,577.20x = 63,544,033,254.28
  5. Step 5: Solve for x
    x = 63,544,033,254.28/338,577.20
  6. Step 6: Final answer
    x = 187,679.60

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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.