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Finding the Fourth Proportional to 375,399.40, 563,142.84 and 122,698.84

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Solution

The fourth proportional to 375,399.40, 563,142.84 and 122,698.84 is: 184,062.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,399.40 : 563,142.84 = 122,698.84 : x
  2. Step 2: Convert to fraction form
    375,399.40/563,142.84 = 122,698.84/x
  3. Step 3: Cross multiply
    375,399.40x = 563,142.84 × 122,698.84
  4. Step 4: Simplify right side
    375,399.40x = 69,096,971,814.45
  5. Step 5: Solve for x
    x = 69,096,971,814.45/375,399.40
  6. Step 6: Final answer
    x = 184,062.55

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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.