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Finding the Fourth Proportional to 104,523.80, 156,785.70 and 34,386.20

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Solution

The fourth proportional to 104,523.80, 156,785.70 and 34,386.20 is: 51,579.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,523.80 : 156,785.70 = 34,386.20 : x
  2. Step 2: Convert to fraction form
    104,523.80/156,785.70 = 34,386.20/x
  3. Step 3: Cross multiply
    104,523.80x = 156,785.70 × 34,386.20
  4. Step 4: Simplify right side
    104,523.80x = 5,391,264,437.34
  5. Step 5: Solve for x
    x = 5,391,264,437.34/104,523.80
  6. Step 6: Final answer
    x = 51,579.30

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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.