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Finding the Fourth Proportional to 350,513.76, 525,770.64 and 84,274.28

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Solution

The fourth proportional to 350,513.76, 525,770.64 and 84,274.28 is: 126,411.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,513.76 : 525,770.64 = 84,274.28 : x
  2. Step 2: Convert to fraction form
    350,513.76/525,770.64 = 84,274.28/x
  3. Step 3: Cross multiply
    350,513.76x = 525,770.64 × 84,274.28
  4. Step 4: Simplify right side
    350,513.76x = 44,308,939,502.29
  5. Step 5: Solve for x
    x = 44,308,939,502.29/350,513.76
  6. Step 6: Final answer
    x = 126,411.41

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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.