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Finding the Fourth Proportional to 368,368.61, 552,553.11 and 115,647.98

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Solution

The fourth proportional to 368,368.61, 552,553.11 and 115,647.98 is: 173,472.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,368.61 : 552,553.11 = 115,647.98 : x
  2. Step 2: Convert to fraction form
    368,368.61/552,553.11 = 115,647.98/x
  3. Step 3: Cross multiply
    368,368.61x = 552,553.11 × 115,647.98
  4. Step 4: Simplify right side
    368,368.61x = 63,901,648,251.45
  5. Step 5: Solve for x
    x = 63,901,648,251.45/368,368.61
  6. Step 6: Final answer
    x = 173,472.03

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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.