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Finding the Fourth Proportional to 165,868.62, 248,655.54 and 64,643.22

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Solution

The fourth proportional to 165,868.62, 248,655.54 and 64,643.22 is: 96,907.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,868.62 : 248,655.54 = 64,643.22 : x
  2. Step 2: Convert to fraction form
    165,868.62/248,655.54 = 64,643.22/x
  3. Step 3: Cross multiply
    165,868.62x = 248,655.54 × 64,643.22
  4. Step 4: Simplify right side
    165,868.62x = 16,073,894,776.44
  5. Step 5: Solve for x
    x = 16,073,894,776.44/165,868.62
  6. Step 6: Final answer
    x = 96,907.39

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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.