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Finding the Fourth Proportional to 104,695.74, 156,952.89 and 42,325.74

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Solution

The fourth proportional to 104,695.74, 156,952.89 and 42,325.74 is: 63,451.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,695.74 : 156,952.89 = 42,325.74 : x
  2. Step 2: Convert to fraction form
    104,695.74/156,952.89 = 42,325.74/x
  3. Step 3: Cross multiply
    104,695.74x = 156,952.89 × 42,325.74
  4. Step 4: Simplify right side
    104,695.74x = 6,643,147,214.39
  5. Step 5: Solve for x
    x = 6,643,147,214.39/104,695.74
  6. Step 6: Final answer
    x = 63,451.93

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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.