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Finding the Fourth Proportional to 350,346.47, 525,472.11 and 136,965.94

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Solution

The fourth proportional to 350,346.47, 525,472.11 and 136,965.94 is: 205,430.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,346.47 : 525,472.11 = 136,965.94 : x
  2. Step 2: Convert to fraction form
    350,346.47/525,472.11 = 136,965.94/x
  3. Step 3: Cross multiply
    350,346.47x = 525,472.11 × 136,965.94
  4. Step 4: Simplify right side
    350,346.47x = 71,971,780,176.25
  5. Step 5: Solve for x
    x = 71,971,780,176.25/350,346.47
  6. Step 6: Final answer
    x = 205,430.30

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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.