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Finding the Fourth Proportional to 156,398.58, 234,422.91 and 67,518.90

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Solution

The fourth proportional to 156,398.58, 234,422.91 and 67,518.90 is: 101,202.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,398.58 : 234,422.91 = 67,518.90 : x
  2. Step 2: Convert to fraction form
    156,398.58/234,422.91 = 67,518.90/x
  3. Step 3: Cross multiply
    156,398.58x = 234,422.91 × 67,518.90
  4. Step 4: Simplify right side
    156,398.58x = 15,827,977,018.00
  5. Step 5: Solve for x
    x = 15,827,977,018.00/156,398.58
  6. Step 6: Final answer
    x = 101,202.82

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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.