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Finding the Fourth Proportional to 353,594.34, 530,409 and 100,912.08

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Solution

The fourth proportional to 353,594.34, 530,409 and 100,912.08 is: 151,373.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,594.34 : 530,409 = 100,912.08 : x
  2. Step 2: Convert to fraction form
    353,594.34/530,409 = 100,912.08/x
  3. Step 3: Cross multiply
    353,594.34x = 530,409 × 100,912.08
  4. Step 4: Simplify right side
    353,594.34x = 53,524,675,440.72
  5. Step 5: Solve for x
    x = 53,524,675,440.72/353,594.34
  6. Step 6: Final answer
    x = 151,373.11

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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.