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Finding the Fourth Proportional to 235,326.87, 324,753.21 and 127,897.16

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Solution

The fourth proportional to 235,326.87, 324,753.21 and 127,897.16 is: 176,499.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,326.87 : 324,753.21 = 127,897.16 : x
  2. Step 2: Convert to fraction form
    235,326.87/324,753.21 = 127,897.16/x
  3. Step 3: Cross multiply
    235,326.87x = 324,753.21 × 127,897.16
  4. Step 4: Simplify right side
    235,326.87x = 41,535,011,636.12
  5. Step 5: Solve for x
    x = 41,535,011,636.12/235,326.87
  6. Step 6: Final answer
    x = 176,499.23

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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.