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Finding the Fourth Proportional to 173,679.90, 260,519.85 and 103,695.90

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Solution

The fourth proportional to 173,679.90, 260,519.85 and 103,695.90 is: 155,543.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,679.90 : 260,519.85 = 103,695.90 : x
  2. Step 2: Convert to fraction form
    173,679.90/260,519.85 = 103,695.90/x
  3. Step 3: Cross multiply
    173,679.90x = 260,519.85 × 103,695.90
  4. Step 4: Simplify right side
    173,679.90x = 27,014,840,313.62
  5. Step 5: Solve for x
    x = 27,014,840,313.62/173,679.90
  6. Step 6: Final answer
    x = 155,543.85

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1.5x scale

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.