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Finding the Fourth Proportional to 353,148.60, 530,337.30 and 187,260.60

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Solution

The fourth proportional to 353,148.60, 530,337.30 and 187,260.60 is: 281,216.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,148.60 : 530,337.30 = 187,260.60 : x
  2. Step 2: Convert to fraction form
    353,148.60/530,337.30 = 187,260.60/x
  3. Step 3: Cross multiply
    353,148.60x = 530,337.30 × 187,260.60
  4. Step 4: Simplify right side
    353,148.60x = 99,311,281,000.38
  5. Step 5: Solve for x
    x = 99,311,281,000.38/353,148.60
  6. Step 6: Final answer
    x = 281,216.69

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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.