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Finding the Fourth Proportional to 173,639, 260,468.60 and 67,023.56

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Solution

The fourth proportional to 173,639, 260,468.60 and 67,023.56 is: 100,539.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,639 : 260,468.60 = 67,023.56 : x
  2. Step 2: Convert to fraction form
    173,639/260,468.60 = 67,023.56/x
  3. Step 3: Cross multiply
    173,639x = 260,468.60 × 67,023.56
  4. Step 4: Simplify right side
    173,639x = 17,457,532,840.22
  5. Step 5: Solve for x
    x = 17,457,532,840.22/173,639
  6. Step 6: Final answer
    x = 100,539.24

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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.