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Finding the Fourth Proportional to 123,654.14, 185,494.81 and 39,394.70

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Solution

The fourth proportional to 123,654.14, 185,494.81 and 39,394.70 is: 59,096.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,654.14 : 185,494.81 = 39,394.70 : x
  2. Step 2: Convert to fraction form
    123,654.14/185,494.81 = 39,394.70/x
  3. Step 3: Cross multiply
    123,654.14x = 185,494.81 × 39,394.70
  4. Step 4: Simplify right side
    123,654.14x = 7,307,512,391.51
  5. Step 5: Solve for x
    x = 7,307,512,391.51/123,654.14
  6. Step 6: Final answer
    x = 59,096.38

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1.5x scale

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.