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Finding the Fourth Proportional to 332,656.05, 459,069.78 and 189,416.66

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Solution

The fourth proportional to 332,656.05, 459,069.78 and 189,416.66 is: 261,397.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,656.05 : 459,069.78 = 189,416.66 : x
  2. Step 2: Convert to fraction form
    332,656.05/459,069.78 = 189,416.66/x
  3. Step 3: Cross multiply
    332,656.05x = 459,069.78 × 189,416.66
  4. Step 4: Simplify right side
    332,656.05x = 86,955,462,139.19
  5. Step 5: Solve for x
    x = 86,955,462,139.19/332,656.05
  6. Step 6: Final answer
    x = 261,397.51

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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.