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Finding the Fourth Proportional to 353,916.65, 530,672.58 and 164,279.45

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Solution

The fourth proportional to 353,916.65, 530,672.58 and 164,279.45 is: 246,325.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,916.65 : 530,672.58 = 164,279.45 : x
  2. Step 2: Convert to fraction form
    353,916.65/530,672.58 = 164,279.45/x
  3. Step 3: Cross multiply
    353,916.65x = 530,672.58 × 164,279.45
  4. Step 4: Simplify right side
    353,916.65x = 87,178,600,899.16
  5. Step 5: Solve for x
    x = 87,178,600,899.16/353,916.65
  6. Step 6: Final answer
    x = 246,325.23

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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.