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Finding the Fourth Proportional to 372,273.76, 513,737.40 and 202,507.48

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Solution

The fourth proportional to 372,273.76, 513,737.40 and 202,507.48 is: 279,460.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,273.76 : 513,737.40 = 202,507.48 : x
  2. Step 2: Convert to fraction form
    372,273.76/513,737.40 = 202,507.48/x
  3. Step 3: Cross multiply
    372,273.76x = 513,737.40 × 202,507.48
  4. Step 4: Simplify right side
    372,273.76x = 104,035,666,255.75
  5. Step 5: Solve for x
    x = 104,035,666,255.75/372,273.76
  6. Step 6: Final answer
    x = 279,460.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.