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Finding the Fourth Proportional to 354,034.72, 531,052.08 and 104,697.28

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Solution

The fourth proportional to 354,034.72, 531,052.08 and 104,697.28 is: 157,045.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,034.72 : 531,052.08 = 104,697.28 : x
  2. Step 2: Convert to fraction form
    354,034.72/531,052.08 = 104,697.28/x
  3. Step 3: Cross multiply
    354,034.72x = 531,052.08 × 104,697.28
  4. Step 4: Simplify right side
    354,034.72x = 55,599,708,314.34
  5. Step 5: Solve for x
    x = 55,599,708,314.34/354,034.72
  6. Step 6: Final answer
    x = 157,045.92

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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.