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Finding the Fourth Proportional to 262,015.70, 392,116.35 and 156,910.10

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Solution

The fourth proportional to 262,015.70, 392,116.35 and 156,910.10 is: 234,821.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,015.70 : 392,116.35 = 156,910.10 : x
  2. Step 2: Convert to fraction form
    262,015.70/392,116.35 = 156,910.10/x
  3. Step 3: Cross multiply
    262,015.70x = 392,116.35 × 156,910.10
  4. Step 4: Simplify right side
    262,015.70x = 61,527,015,690.14
  5. Step 5: Solve for x
    x = 61,527,015,690.14/262,015.70
  6. Step 6: Final answer
    x = 234,821.87

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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.