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Finding the Fourth Proportional to 375,511.60, 563,208.54 and 122,789.98

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Solution

The fourth proportional to 375,511.60, 563,208.54 and 122,789.98 is: 184,165.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,511.60 : 563,208.54 = 122,789.98 : x
  2. Step 2: Convert to fraction form
    375,511.60/563,208.54 = 122,789.98/x
  3. Step 3: Cross multiply
    375,511.60x = 563,208.54 × 122,789.98
  4. Step 4: Simplify right side
    375,511.60x = 69,156,365,362.43
  5. Step 5: Solve for x
    x = 69,156,365,362.43/375,511.60
  6. Step 6: Final answer
    x = 184,165.72

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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.