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Finding the Fourth Proportional to 235,460.46, 324,933.06 and 128,030.52

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Solution

The fourth proportional to 235,460.46, 324,933.06 and 128,030.52 is: 176,680.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,460.46 : 324,933.06 = 128,030.52 : x
  2. Step 2: Convert to fraction form
    235,460.46/324,933.06 = 128,030.52/x
  3. Step 3: Cross multiply
    235,460.46x = 324,933.06 × 128,030.52
  4. Step 4: Simplify right side
    235,460.46x = 41,601,348,636.99
  5. Step 5: Solve for x
    x = 41,601,348,636.99/235,460.46
  6. Step 6: Final answer
    x = 176,680.83

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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.