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Finding the Fourth Proportional to 168,885.62, 253,328.68 and 42,525.90

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Solution

The fourth proportional to 168,885.62, 253,328.68 and 42,525.90 is: 63,788.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,885.62 : 253,328.68 = 42,525.90 : x
  2. Step 2: Convert to fraction form
    168,885.62/253,328.68 = 42,525.90/x
  3. Step 3: Cross multiply
    168,885.62x = 253,328.68 × 42,525.90
  4. Step 4: Simplify right side
    168,885.62x = 10,773,030,112.81
  5. Step 5: Solve for x
    x = 10,773,030,112.81/168,885.62
  6. Step 6: Final answer
    x = 63,788.91

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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.