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Finding the Fourth Proportional to 389,332.98, 583,996.03 and 123,093.68

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Solution

The fourth proportional to 389,332.98, 583,996.03 and 123,093.68 is: 184,639.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,332.98 : 583,996.03 = 123,093.68 : x
  2. Step 2: Convert to fraction form
    389,332.98/583,996.03 = 123,093.68/x
  3. Step 3: Cross multiply
    389,332.98x = 583,996.03 × 123,093.68
  4. Step 4: Simplify right side
    389,332.98x = 71,886,217,210.38
  5. Step 5: Solve for x
    x = 71,886,217,210.38/389,332.98
  6. Step 6: Final answer
    x = 184,639.42

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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.