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Finding the Fourth Proportional to 291,798.28, 402,712.58 and 171,041.03

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Solution

The fourth proportional to 291,798.28, 402,712.58 and 171,041.03 is: 236,054.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,798.28 : 402,712.58 = 171,041.03 : x
  2. Step 2: Convert to fraction form
    291,798.28/402,712.58 = 171,041.03/x
  3. Step 3: Cross multiply
    291,798.28x = 402,712.58 × 171,041.03
  4. Step 4: Simplify right side
    291,798.28x = 68,880,372,891.20
  5. Step 5: Solve for x
    x = 68,880,372,891.20/291,798.28
  6. Step 6: Final answer
    x = 236,054.76

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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.