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Finding the Fourth Proportional to 122,508.51, 183,788.94 and 42,548.96

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Solution

The fourth proportional to 122,508.51, 183,788.94 and 42,548.96 is: 63,832.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,508.51 : 183,788.94 = 42,548.96 : x
  2. Step 2: Convert to fraction form
    122,508.51/183,788.94 = 42,548.96/x
  3. Step 3: Cross multiply
    122,508.51x = 183,788.94 × 42,548.96
  4. Step 4: Simplify right side
    122,508.51x = 7,820,027,337.56
  5. Step 5: Solve for x
    x = 7,820,027,337.56/122,508.51
  6. Step 6: Final answer
    x = 63,832.52

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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.