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Finding the Fourth Proportional to 353,521.89, 530,365.86 and 116,864.55

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Solution

The fourth proportional to 353,521.89, 530,365.86 and 116,864.55 is: 175,324.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,521.89 : 530,365.86 = 116,864.55 : x
  2. Step 2: Convert to fraction form
    353,521.89/530,365.86 = 116,864.55/x
  3. Step 3: Cross multiply
    353,521.89x = 530,365.86 × 116,864.55
  4. Step 4: Simplify right side
    353,521.89x = 61,980,967,564.26
  5. Step 5: Solve for x
    x = 61,980,967,564.26/353,521.89
  6. Step 6: Final answer
    x = 175,324.27

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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.