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Finding the Fourth Proportional to 338,604.55, 507,973.58 and 125,374.33

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Solution

The fourth proportional to 338,604.55, 507,973.58 and 125,374.33 is: 188,086.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,604.55 : 507,973.58 = 125,374.33 : x
  2. Step 2: Convert to fraction form
    338,604.55/507,973.58 = 125,374.33/x
  3. Step 3: Cross multiply
    338,604.55x = 507,973.58 × 125,374.33
  4. Step 4: Simplify right side
    338,604.55x = 63,686,847,728.45
  5. Step 5: Solve for x
    x = 63,686,847,728.45/338,604.55
  6. Step 6: Final answer
    x = 188,086.21

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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.