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Finding the Fourth Proportional to 349,871.60, 525,196.20 and 192,407.60

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Solution

The fourth proportional to 349,871.60, 525,196.20 and 192,407.60 is: 288,825.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,871.60 : 525,196.20 = 192,407.60 : x
  2. Step 2: Convert to fraction form
    349,871.60/525,196.20 = 192,407.60/x
  3. Step 3: Cross multiply
    349,871.60x = 525,196.20 × 192,407.60
  4. Step 4: Simplify right side
    349,871.60x = 101,051,740,371.12
  5. Step 5: Solve for x
    x = 101,051,740,371.12/349,871.60
  6. Step 6: Final answer
    x = 288,825.22

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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.