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Finding the Fourth Proportional to 343,671.60, 474,254.35 and 190,716.47

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Solution

The fourth proportional to 343,671.60, 474,254.35 and 190,716.47 is: 263,181.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,671.60 : 474,254.35 = 190,716.47 : x
  2. Step 2: Convert to fraction form
    343,671.60/474,254.35 = 190,716.47/x
  3. Step 3: Cross multiply
    343,671.60x = 474,254.35 × 190,716.47
  4. Step 4: Simplify right side
    343,671.60x = 90,448,112,666.08
  5. Step 5: Solve for x
    x = 90,448,112,666.08/343,671.60
  6. Step 6: Final answer
    x = 263,181.81

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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.