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Finding the Fourth Proportional to 375,564.15, 563,438.39 and 109,327.05

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Solution

The fourth proportional to 375,564.15, 563,438.39 and 109,327.05 is: 164,017.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,564.15 : 563,438.39 = 109,327.05 : x
  2. Step 2: Convert to fraction form
    375,564.15/563,438.39 = 109,327.05/x
  3. Step 3: Cross multiply
    375,564.15x = 563,438.39 × 109,327.05
  4. Step 4: Simplify right side
    375,564.15x = 61,599,057,035.45
  5. Step 5: Solve for x
    x = 61,599,057,035.45/375,564.15
  6. Step 6: Final answer
    x = 164,017.40

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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.