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Finding the Fourth Proportional to 375,920.67, 563,985.09 and 173,578.53

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Solution

The fourth proportional to 375,920.67, 563,985.09 and 173,578.53 is: 260,415.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,920.67 : 563,985.09 = 173,578.53 : x
  2. Step 2: Convert to fraction form
    375,920.67/563,985.09 = 173,578.53/x
  3. Step 3: Cross multiply
    375,920.67x = 563,985.09 × 173,578.53
  4. Step 4: Simplify right side
    375,920.67x = 97,895,702,864.12
  5. Step 5: Solve for x
    x = 97,895,702,864.12/375,920.67
  6. Step 6: Final answer
    x = 260,415.86

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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.