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Finding the Fourth Proportional to 169,130.30, 253,724.54 and 56,821.23

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Solution

The fourth proportional to 169,130.30, 253,724.54 and 56,821.23 is: 85,241.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,130.30 : 253,724.54 = 56,821.23 : x
  2. Step 2: Convert to fraction form
    169,130.30/253,724.54 = 56,821.23/x
  3. Step 3: Cross multiply
    169,130.30x = 253,724.54 × 56,821.23
  4. Step 4: Simplify right side
    169,130.30x = 14,416,940,159.88
  5. Step 5: Solve for x
    x = 14,416,940,159.88/169,130.30
  6. Step 6: Final answer
    x = 85,241.62

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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.