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Finding the Fourth Proportional to 343,571.02, 474,130.86 and 190,619.25

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Solution

The fourth proportional to 343,571.02, 474,130.86 and 190,619.25 is: 263,056.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,571.02 : 474,130.86 = 190,619.25 : x
  2. Step 2: Convert to fraction form
    343,571.02/474,130.86 = 190,619.25/x
  3. Step 3: Cross multiply
    343,571.02x = 474,130.86 × 190,619.25
  4. Step 4: Simplify right side
    343,571.02x = 90,378,468,935.06
  5. Step 5: Solve for x
    x = 90,378,468,935.06/343,571.02
  6. Step 6: Final answer
    x = 263,056.15

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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.