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Finding the Fourth Proportional to 123,590.67, 185,383.37 and 39,356.66

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Solution

The fourth proportional to 123,590.67, 185,383.37 and 39,356.66 is: 59,034.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,590.67 : 185,383.37 = 39,356.66 : x
  2. Step 2: Convert to fraction form
    123,590.67/185,383.37 = 39,356.66/x
  3. Step 3: Cross multiply
    123,590.67x = 185,383.37 × 39,356.66
  4. Step 4: Simplify right side
    123,590.67x = 7,296,069,139.04
  5. Step 5: Solve for x
    x = 7,296,069,139.04/123,590.67
  6. Step 6: Final answer
    x = 59,034.14

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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.