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Finding the Fourth Proportional to 339,765.71, 468,864.70 and 186,802.72

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Solution

The fourth proportional to 339,765.71, 468,864.70 and 186,802.72 is: 257,781.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,765.71 : 468,864.70 = 186,802.72 : x
  2. Step 2: Convert to fraction form
    339,765.71/468,864.70 = 186,802.72/x
  3. Step 3: Cross multiply
    339,765.71x = 468,864.70 × 186,802.72
  4. Step 4: Simplify right side
    339,765.71x = 87,585,201,342.92
  5. Step 5: Solve for x
    x = 87,585,201,342.92/339,765.71
  6. Step 6: Final answer
    x = 257,781.16

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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.