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Finding the Fourth Proportional to 353,513.34, 530,271.11 and 87,273.88

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Solution

The fourth proportional to 353,513.34, 530,271.11 and 87,273.88 is: 130,911.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,513.34 : 530,271.11 = 87,273.88 : x
  2. Step 2: Convert to fraction form
    353,513.34/530,271.11 = 87,273.88/x
  3. Step 3: Cross multiply
    353,513.34x = 530,271.11 × 87,273.88
  4. Step 4: Simplify right side
    353,513.34x = 46,278,817,114.59
  5. Step 5: Solve for x
    x = 46,278,817,114.59/353,513.34
  6. Step 6: Final answer
    x = 130,911.09

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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.