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Finding the Fourth Proportional to 104,649.57, 156,979.80 and 34,534.35

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Solution

The fourth proportional to 104,649.57, 156,979.80 and 34,534.35 is: 51,803.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,649.57 : 156,979.80 = 34,534.35 : x
  2. Step 2: Convert to fraction form
    104,649.57/156,979.80 = 34,534.35/x
  3. Step 3: Cross multiply
    104,649.57x = 156,979.80 × 34,534.35
  4. Step 4: Simplify right side
    104,649.57x = 5,421,195,356.13
  5. Step 5: Solve for x
    x = 5,421,195,356.13/104,649.57
  6. Step 6: Final answer
    x = 51,803.32

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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.