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Finding the Fourth Proportional to 122,752.48, 184,128.72 and 38,525.64

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Solution

The fourth proportional to 122,752.48, 184,128.72 and 38,525.64 is: 57,788.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,752.48 : 184,128.72 = 38,525.64 : x
  2. Step 2: Convert to fraction form
    122,752.48/184,128.72 = 38,525.64/x
  3. Step 3: Cross multiply
    122,752.48x = 184,128.72 × 38,525.64
  4. Step 4: Simplify right side
    122,752.48x = 7,093,676,780.38
  5. Step 5: Solve for x
    x = 7,093,676,780.38/122,752.48
  6. Step 6: Final answer
    x = 57,788.46

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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.