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Finding the Fourth Proportional to 366,915.10, 550,372.65 and 156,574.30

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Solution

The fourth proportional to 366,915.10, 550,372.65 and 156,574.30 is: 234,861.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,915.10 : 550,372.65 = 156,574.30 : x
  2. Step 2: Convert to fraction form
    366,915.10/550,372.65 = 156,574.30/x
  3. Step 3: Cross multiply
    366,915.10x = 550,372.65 × 156,574.30
  4. Step 4: Simplify right side
    366,915.10x = 86,174,212,412.90
  5. Step 5: Solve for x
    x = 86,174,212,412.90/366,915.10
  6. Step 6: Final answer
    x = 234,861.45

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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.