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Finding the Fourth Proportional to 349,871.10, 525,195.45 and 192,407.10

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Solution

The fourth proportional to 349,871.10, 525,195.45 and 192,407.10 is: 288,824.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,871.10 : 525,195.45 = 192,407.10 : x
  2. Step 2: Convert to fraction form
    349,871.10/525,195.45 = 192,407.10/x
  3. Step 3: Cross multiply
    349,871.10x = 525,195.45 × 192,407.10
  4. Step 4: Simplify right side
    349,871.10x = 101,051,333,467.70
  5. Step 5: Solve for x
    x = 101,051,333,467.70/349,871.10
  6. Step 6: Final answer
    x = 288,824.47

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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.