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Finding the Fourth Proportional to 354,126.02, 531,032.72 and 101,348.96

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Solution

The fourth proportional to 354,126.02, 531,032.72 and 101,348.96 is: 151,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,126.02 : 531,032.72 = 101,348.96 : x
  2. Step 2: Convert to fraction form
    354,126.02/531,032.72 = 101,348.96/x
  3. Step 3: Cross multiply
    354,126.02x = 531,032.72 × 101,348.96
  4. Step 4: Simplify right side
    354,126.02x = 53,819,610,736.06
  5. Step 5: Solve for x
    x = 53,819,610,736.06/354,126.02
  6. Step 6: Final answer
    x = 151,978.70

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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.