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Finding the Fourth Proportional to 235,733.01, 325,319.54 and 128,306.94

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Solution

The fourth proportional to 235,733.01, 325,319.54 and 128,306.94 is: 177,067.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,733.01 : 325,319.54 = 128,306.94 : x
  2. Step 2: Convert to fraction form
    235,733.01/325,319.54 = 128,306.94/x
  3. Step 3: Cross multiply
    235,733.01x = 325,319.54 × 128,306.94
  4. Step 4: Simplify right side
    235,733.01x = 41,740,754,058.07
  5. Step 5: Solve for x
    x = 41,740,754,058.07/235,733.01
  6. Step 6: Final answer
    x = 177,067.92

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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.