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Finding the Fourth Proportional to 94,784.88, 142,054 and 38,559.48

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Solution

The fourth proportional to 94,784.88, 142,054 and 38,559.48 is: 57,789.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,784.88 : 142,054 = 38,559.48 : x
  2. Step 2: Convert to fraction form
    94,784.88/142,054 = 38,559.48/x
  3. Step 3: Cross multiply
    94,784.88x = 142,054 × 38,559.48
  4. Step 4: Simplify right side
    94,784.88x = 5,477,528,371.92
  5. Step 5: Solve for x
    x = 5,477,528,371.92/94,784.88
  6. Step 6: Final answer
    x = 57,789.05

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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.