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Finding the Fourth Proportional to 178,153.47, 245,783.39 and 101,676.81

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Solution

The fourth proportional to 178,153.47, 245,783.39 and 101,676.81 is: 140,274.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,153.47 : 245,783.39 = 101,676.81 : x
  2. Step 2: Convert to fraction form
    178,153.47/245,783.39 = 101,676.81/x
  3. Step 3: Cross multiply
    178,153.47x = 245,783.39 × 101,676.81
  4. Step 4: Simplify right side
    178,153.47x = 24,990,470,537.80
  5. Step 5: Solve for x
    x = 24,990,470,537.80/178,153.47
  6. Step 6: Final answer
    x = 140,274.96

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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.