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Finding the Fourth Proportional to 357,294.03, 535,240.37 and 207,219.12

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Solution

The fourth proportional to 357,294.03, 535,240.37 and 207,219.12 is: 310,422.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,294.03 : 535,240.37 = 207,219.12 : x
  2. Step 2: Convert to fraction form
    357,294.03/535,240.37 = 207,219.12/x
  3. Step 3: Cross multiply
    357,294.03x = 535,240.37 × 207,219.12
  4. Step 4: Simplify right side
    357,294.03x = 110,912,038,459.87
  5. Step 5: Solve for x
    x = 110,912,038,459.87/357,294.03
  6. Step 6: Final answer
    x = 310,422.31

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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.