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Finding the Fourth Proportional to 169,381.02, 253,850.04 and 69,424.20

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Solution

The fourth proportional to 169,381.02, 253,850.04 and 69,424.20 is: 104,045.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,381.02 : 253,850.04 = 69,424.20 : x
  2. Step 2: Convert to fraction form
    169,381.02/253,850.04 = 69,424.20/x
  3. Step 3: Cross multiply
    169,381.02x = 253,850.04 × 69,424.20
  4. Step 4: Simplify right side
    169,381.02x = 17,623,335,946.97
  5. Step 5: Solve for x
    x = 17,623,335,946.97/169,381.02
  6. Step 6: Final answer
    x = 104,045.52

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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.