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Finding the Fourth Proportional to 291,798.48, 402,712.86 and 171,041.22

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Solution

The fourth proportional to 291,798.48, 402,712.86 and 171,041.22 is: 236,055.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,798.48 : 402,712.86 = 171,041.22 : x
  2. Step 2: Convert to fraction form
    291,798.48/402,712.86 = 171,041.22/x
  3. Step 3: Cross multiply
    291,798.48x = 402,712.86 × 171,041.22
  4. Step 4: Simplify right side
    291,798.48x = 68,880,498,028.88
  5. Step 5: Solve for x
    x = 68,880,498,028.88/291,798.48
  6. Step 6: Final answer
    x = 236,055.03

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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.