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Finding the Fourth Proportional to 353,393.28, 530,013.60 and 116,679.84

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Solution

The fourth proportional to 353,393.28, 530,013.60 and 116,679.84 is: 174,994.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,393.28 : 530,013.60 = 116,679.84 : x
  2. Step 2: Convert to fraction form
    353,393.28/530,013.60 = 116,679.84/x
  3. Step 3: Cross multiply
    353,393.28x = 530,013.60 × 116,679.84
  4. Step 4: Simplify right side
    353,393.28x = 61,841,902,045.82
  5. Step 5: Solve for x
    x = 61,841,902,045.82/353,393.28
  6. Step 6: Final answer
    x = 174,994.56

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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.