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Finding the Fourth Proportional to 292,081.86, 438,122.88 and 123,558.48

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Solution

The fourth proportional to 292,081.86, 438,122.88 and 123,558.48 is: 185,337.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,081.86 : 438,122.88 = 123,558.48 : x
  2. Step 2: Convert to fraction form
    292,081.86/438,122.88 = 123,558.48/x
  3. Step 3: Cross multiply
    292,081.86x = 438,122.88 × 123,558.48
  4. Step 4: Simplify right side
    292,081.86x = 54,133,797,106.02
  5. Step 5: Solve for x
    x = 54,133,797,106.02/292,081.86
  6. Step 6: Final answer
    x = 185,337.76

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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.