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Finding the Fourth Proportional to 202,856.94, 279,848.32 and 131,260.10

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Solution

The fourth proportional to 202,856.94, 279,848.32 and 131,260.10 is: 181,077.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,856.94 : 279,848.32 = 131,260.10 : x
  2. Step 2: Convert to fraction form
    202,856.94/279,848.32 = 131,260.10/x
  3. Step 3: Cross multiply
    202,856.94x = 279,848.32 × 131,260.10
  4. Step 4: Simplify right side
    202,856.94x = 36,732,916,740.64
  5. Step 5: Solve for x
    x = 36,732,916,740.64/202,856.94
  6. Step 6: Final answer
    x = 181,077.94

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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.