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Finding the Fourth Proportional to 353,552.80, 529,868.40 and 163,991.20

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Solution

The fourth proportional to 353,552.80, 529,868.40 and 163,991.20 is: 245,773.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,552.80 : 529,868.40 = 163,991.20 : x
  2. Step 2: Convert to fraction form
    353,552.80/529,868.40 = 163,991.20/x
  3. Step 3: Cross multiply
    353,552.80x = 529,868.40 × 163,991.20
  4. Step 4: Simplify right side
    353,552.80x = 86,893,754,758.08
  5. Step 5: Solve for x
    x = 86,893,754,758.08/353,552.80
  6. Step 6: Final answer
    x = 245,773.06

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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.