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Finding the Fourth Proportional to 386,126.51, 532,854.75 and 235,223.51

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Solution

The fourth proportional to 386,126.51, 532,854.75 and 235,223.51 is: 324,608.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,126.51 : 532,854.75 = 235,223.51 : x
  2. Step 2: Convert to fraction form
    386,126.51/532,854.75 = 235,223.51/x
  3. Step 3: Cross multiply
    386,126.51x = 532,854.75 × 235,223.51
  4. Step 4: Simplify right side
    386,126.51x = 125,339,964,615.17
  5. Step 5: Solve for x
    x = 125,339,964,615.17/386,126.51
  6. Step 6: Final answer
    x = 324,608.55

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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.