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Finding the Fourth Proportional to 350,641.60, 525,616.80 and 173,003.20

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Solution

The fourth proportional to 350,641.60, 525,616.80 and 173,003.20 is: 259,334.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,641.60 : 525,616.80 = 173,003.20 : x
  2. Step 2: Convert to fraction form
    350,641.60/525,616.80 = 173,003.20/x
  3. Step 3: Cross multiply
    350,641.60x = 525,616.80 × 173,003.20
  4. Step 4: Simplify right side
    350,641.60x = 90,933,388,373.76
  5. Step 5: Solve for x
    x = 90,933,388,373.76/350,641.60
  6. Step 6: Final answer
    x = 259,334.28

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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.