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Finding the Fourth Proportional to 353,980.86, 530,683.05 and 164,560.69

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Solution

The fourth proportional to 353,980.86, 530,683.05 and 164,560.69 is: 246,707.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,980.86 : 530,683.05 = 164,560.69 : x
  2. Step 2: Convert to fraction form
    353,980.86/530,683.05 = 164,560.69/x
  3. Step 3: Cross multiply
    353,980.86x = 530,683.05 × 164,560.69
  4. Step 4: Simplify right side
    353,980.86x = 87,329,569,842.54
  5. Step 5: Solve for x
    x = 87,329,569,842.54/353,980.86
  6. Step 6: Final answer
    x = 246,707.04

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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.