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Finding the Fourth Proportional to 372,298.92, 513,770.06 and 202,533.72

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Solution

The fourth proportional to 372,298.92, 513,770.06 and 202,533.72 is: 279,495.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,298.92 : 513,770.06 = 202,533.72 : x
  2. Step 2: Convert to fraction form
    372,298.92/513,770.06 = 202,533.72/x
  3. Step 3: Cross multiply
    372,298.92x = 513,770.06 × 202,533.72
  4. Step 4: Simplify right side
    372,298.92x = 104,055,761,476.42
  5. Step 5: Solve for x
    x = 104,055,761,476.42/372,298.92
  6. Step 6: Final answer
    x = 279,495.20

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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.