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Finding the Fourth Proportional to 218,172.48, 327,259.17 and 60,401.40

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Solution

The fourth proportional to 218,172.48, 327,259.17 and 60,401.40 is: 90,602.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,172.48 : 327,259.17 = 60,401.40 : x
  2. Step 2: Convert to fraction form
    218,172.48/327,259.17 = 60,401.40/x
  3. Step 3: Cross multiply
    218,172.48x = 327,259.17 × 60,401.40
  4. Step 4: Simplify right side
    218,172.48x = 19,766,912,030.84
  5. Step 5: Solve for x
    x = 19,766,912,030.84/218,172.48
  6. Step 6: Final answer
    x = 90,602.22

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1.5x scale

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.