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Finding the Fourth Proportional to 357,315.88, 535,273.26 and 207,240.88

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Solution

The fourth proportional to 357,315.88, 535,273.26 and 207,240.88 is: 310,455.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,315.88 : 535,273.26 = 207,240.88 : x
  2. Step 2: Convert to fraction form
    357,315.88/535,273.26 = 207,240.88/x
  3. Step 3: Cross multiply
    357,315.88x = 535,273.26 × 207,240.88
  4. Step 4: Simplify right side
    357,315.88x = 110,930,501,442.87
  5. Step 5: Solve for x
    x = 110,930,501,442.87/357,315.88
  6. Step 6: Final answer
    x = 310,455.00

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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.