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Finding the Fourth Proportional to 123,046.80, 184,570.20 and 103,363.80

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Solution

The fourth proportional to 123,046.80, 184,570.20 and 103,363.80 is: 155,045.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,046.80 : 184,570.20 = 103,363.80 : x
  2. Step 2: Convert to fraction form
    123,046.80/184,570.20 = 103,363.80/x
  3. Step 3: Cross multiply
    123,046.80x = 184,570.20 × 103,363.80
  4. Step 4: Simplify right side
    123,046.80x = 19,077,877,238.76
  5. Step 5: Solve for x
    x = 19,077,877,238.76/123,046.80
  6. Step 6: Final answer
    x = 155,045.70

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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.