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Finding the Fourth Proportional to 293,678.13, 405,262.26 and 166,354.77

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Solution

The fourth proportional to 293,678.13, 405,262.26 and 166,354.77 is: 229,561.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,678.13 : 405,262.26 = 166,354.77 : x
  2. Step 2: Convert to fraction form
    293,678.13/405,262.26 = 166,354.77/x
  3. Step 3: Cross multiply
    293,678.13x = 405,262.26 × 166,354.77
  4. Step 4: Simplify right side
    293,678.13x = 67,417,310,051.98
  5. Step 5: Solve for x
    x = 67,417,310,051.98/293,678.13
  6. Step 6: Final answer
    x = 229,561.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.