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Finding the Fourth Proportional to 178,925.61, 246,917.85 and 102,445.87

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Solution

The fourth proportional to 178,925.61, 246,917.85 and 102,445.87 is: 141,375.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,925.61 : 246,917.85 = 102,445.87 : x
  2. Step 2: Convert to fraction form
    178,925.61/246,917.85 = 102,445.87/x
  3. Step 3: Cross multiply
    178,925.61x = 246,917.85 × 102,445.87
  4. Step 4: Simplify right side
    178,925.61x = 25,295,714,066.84
  5. Step 5: Solve for x
    x = 25,295,714,066.84/178,925.61
  6. Step 6: Final answer
    x = 141,375.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.