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Finding the Fourth Proportional to 236,468.15, 354,565.70 and 161,678.87

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Solution

The fourth proportional to 236,468.15, 354,565.70 and 161,678.87 is: 242,424.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,468.15 : 354,565.70 = 161,678.87 : x
  2. Step 2: Convert to fraction form
    236,468.15/354,565.70 = 161,678.87/x
  3. Step 3: Cross multiply
    236,468.15x = 354,565.70 × 161,678.87
  4. Step 4: Simplify right side
    236,468.15x = 57,325,780,908.36
  5. Step 5: Solve for x
    x = 57,325,780,908.36/236,468.15
  6. Step 6: Final answer
    x = 242,424.96

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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.