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Finding the Fourth Proportional to 262,063.70, 392,188.35 and 156,958.10

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Solution

The fourth proportional to 262,063.70, 392,188.35 and 156,958.10 is: 234,893.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,063.70 : 392,188.35 = 156,958.10 : x
  2. Step 2: Convert to fraction form
    262,063.70/392,188.35 = 156,958.10/x
  3. Step 3: Cross multiply
    262,063.70x = 392,188.35 × 156,958.10
  4. Step 4: Simplify right side
    262,063.70x = 61,557,138,258.14
  5. Step 5: Solve for x
    x = 61,557,138,258.14/262,063.70
  6. Step 6: Final answer
    x = 234,893.80

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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.