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Finding the Fourth Proportional to 543,611.36, 815,095.06 and 164,417.15

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Solution

The fourth proportional to 543,611.36, 815,095.06 and 164,417.15 is: 246,528.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,611.36 : 815,095.06 = 164,417.15 : x
  2. Step 2: Convert to fraction form
    543,611.36/815,095.06 = 164,417.15/x
  3. Step 3: Cross multiply
    543,611.36x = 815,095.06 × 164,417.15
  4. Step 4: Simplify right side
    543,611.36x = 134,015,606,744.28
  5. Step 5: Solve for x
    x = 134,015,606,744.28/543,611.36
  6. Step 6: Final answer
    x = 246,528.34

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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.