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Finding the Fourth Proportional to 292,673.91, 438,744.66 and 112,644.51

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Solution

The fourth proportional to 292,673.91, 438,744.66 and 112,644.51 is: 168,864.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,673.91 : 438,744.66 = 112,644.51 : x
  2. Step 2: Convert to fraction form
    292,673.91/438,744.66 = 112,644.51/x
  3. Step 3: Cross multiply
    292,673.91x = 438,744.66 × 112,644.51
  4. Step 4: Simplify right side
    292,673.91x = 49,422,177,816.09
  5. Step 5: Solve for x
    x = 49,422,177,816.09/292,673.91
  6. Step 6: Final answer
    x = 168,864.31

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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.