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Finding the Fourth Proportional to 173,956.60, 260,852.64 and 67,390.45

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Solution

The fourth proportional to 173,956.60, 260,852.64 and 67,390.45 is: 101,053.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,956.60 : 260,852.64 = 67,390.45 : x
  2. Step 2: Convert to fraction form
    173,956.60/260,852.64 = 67,390.45/x
  3. Step 3: Cross multiply
    173,956.60x = 260,852.64 × 67,390.45
  4. Step 4: Simplify right side
    173,956.60x = 17,578,976,793.29
  5. Step 5: Solve for x
    x = 17,578,976,793.29/173,956.60
  6. Step 6: Final answer
    x = 101,053.81

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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.