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Finding the Fourth Proportional to 113,635.58, 156,810.06 and 62,645.67

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Solution

The fourth proportional to 113,635.58, 156,810.06 and 62,645.67 is: 86,447.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,635.58 : 156,810.06 = 62,645.67 : x
  2. Step 2: Convert to fraction form
    113,635.58/156,810.06 = 62,645.67/x
  3. Step 3: Cross multiply
    113,635.58x = 156,810.06 × 62,645.67
  4. Step 4: Simplify right side
    113,635.58x = 9,823,471,271.44
  5. Step 5: Solve for x
    x = 9,823,471,271.44/113,635.58
  6. Step 6: Final answer
    x = 86,447.15

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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.