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Finding the Fourth Proportional to 123,713.94, 185,480.04 and 39,425.58

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Solution

The fourth proportional to 123,713.94, 185,480.04 and 39,425.58 is: 59,109.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,713.94 : 185,480.04 = 39,425.58 : x
  2. Step 2: Convert to fraction form
    123,713.94/185,480.04 = 39,425.58/x
  3. Step 3: Cross multiply
    123,713.94x = 185,480.04 × 39,425.58
  4. Step 4: Simplify right side
    123,713.94x = 7,312,658,155.42
  5. Step 5: Solve for x
    x = 7,312,658,155.42/123,713.94
  6. Step 6: Final answer
    x = 59,109.41

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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.