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Finding the Fourth Proportional to 375,675.36, 563,605.31 and 109,438.21

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Solution

The fourth proportional to 375,675.36, 563,605.31 and 109,438.21 is: 164,184.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,675.36 : 563,605.31 = 109,438.21 : x
  2. Step 2: Convert to fraction form
    375,675.36/563,605.31 = 109,438.21/x
  3. Step 3: Cross multiply
    375,675.36x = 563,605.31 × 109,438.21
  4. Step 4: Simplify right side
    375,675.36x = 61,679,956,272.90
  5. Step 5: Solve for x
    x = 61,679,956,272.90/375,675.36
  6. Step 6: Final answer
    x = 164,184.19

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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.