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Finding the Fourth Proportional to 113,493, 156,625.20 and 63,192

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Solution

The fourth proportional to 113,493, 156,625.20 and 63,192 is: 87,207.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,493 : 156,625.20 = 63,192 : x
  2. Step 2: Convert to fraction form
    113,493/156,625.20 = 63,192/x
  3. Step 3: Cross multiply
    113,493x = 156,625.20 × 63,192
  4. Step 4: Simplify right side
    113,493x = 9,897,459,638.40
  5. Step 5: Solve for x
    x = 9,897,459,638.40/113,493
  6. Step 6: Final answer
    x = 87,207.67

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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.