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Finding the Fourth Proportional to 262,415.70, 392,967.45 and 173,186.10

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Solution

The fourth proportional to 262,415.70, 392,967.45 and 173,186.10 is: 259,346.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,415.70 : 392,967.45 = 173,186.10 : x
  2. Step 2: Convert to fraction form
    262,415.70/392,967.45 = 173,186.10/x
  3. Step 3: Cross multiply
    262,415.70x = 392,967.45 × 173,186.10
  4. Step 4: Simplify right side
    262,415.70x = 68,056,500,092.45
  5. Step 5: Solve for x
    x = 68,056,500,092.45/262,415.70
  6. Step 6: Final answer
    x = 259,346.14

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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.