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Finding the Fourth Proportional to 353,478.52, 530,098.86 and 113,533.54

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Solution

The fourth proportional to 353,478.52, 530,098.86 and 113,533.54 is: 170,262.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,478.52 : 530,098.86 = 113,533.54 : x
  2. Step 2: Convert to fraction form
    353,478.52/530,098.86 = 113,533.54/x
  3. Step 3: Cross multiply
    353,478.52x = 530,098.86 × 113,533.54
  4. Step 4: Simplify right side
    353,478.52x = 60,184,000,125.76
  5. Step 5: Solve for x
    x = 60,184,000,125.76/353,478.52
  6. Step 6: Final answer
    x = 170,262.11

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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.