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Finding the Fourth Proportional to 235,812.01, 353,731.86 and 67,319.38

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Solution

The fourth proportional to 235,812.01, 353,731.86 and 67,319.38 is: 100,983.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,812.01 : 353,731.86 = 67,319.38 : x
  2. Step 2: Convert to fraction form
    235,812.01/353,731.86 = 67,319.38/x
  3. Step 3: Cross multiply
    235,812.01x = 353,731.86 × 67,319.38
  4. Step 4: Simplify right side
    235,812.01x = 23,813,009,501.45
  5. Step 5: Solve for x
    x = 23,813,009,501.45/235,812.01
  6. Step 6: Final answer
    x = 100,983.02

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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.