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Finding the Fourth Proportional to 298,035.64, 447,009.72 and 98,362.54

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Solution

The fourth proportional to 298,035.64, 447,009.72 and 98,362.54 is: 147,529.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,035.64 : 447,009.72 = 98,362.54 : x
  2. Step 2: Convert to fraction form
    298,035.64/447,009.72 = 98,362.54/x
  3. Step 3: Cross multiply
    298,035.64x = 447,009.72 × 98,362.54
  4. Step 4: Simplify right side
    298,035.64x = 43,969,011,463.89
  5. Step 5: Solve for x
    x = 43,969,011,463.89/298,035.64
  6. Step 6: Final answer
    x = 147,529.37

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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.