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Finding the Fourth Proportional to 173,052.40, 259,432.80 and 89,946.40

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Solution

The fourth proportional to 173,052.40, 259,432.80 and 89,946.40 is: 134,843.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,052.40 : 259,432.80 = 89,946.40 : x
  2. Step 2: Convert to fraction form
    173,052.40/259,432.80 = 89,946.40/x
  3. Step 3: Cross multiply
    173,052.40x = 259,432.80 × 89,946.40
  4. Step 4: Simplify right side
    173,052.40x = 23,335,046,401.92
  5. Step 5: Solve for x
    x = 23,335,046,401.92/173,052.40
  6. Step 6: Final answer
    x = 134,843.82

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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.