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Finding the Fourth Proportional to 350,087.80, 525,261.30 and 113,438.20

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Solution

The fourth proportional to 350,087.80, 525,261.30 and 113,438.20 is: 170,199.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,087.80 : 525,261.30 = 113,438.20 : x
  2. Step 2: Convert to fraction form
    350,087.80/525,261.30 = 113,438.20/x
  3. Step 3: Cross multiply
    350,087.80x = 525,261.30 × 113,438.20
  4. Step 4: Simplify right side
    350,087.80x = 59,584,696,401.66
  5. Step 5: Solve for x
    x = 59,584,696,401.66/350,087.80
  6. Step 6: Final answer
    x = 170,199.29

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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.