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Finding the Fourth Proportional to 343,511.70, 474,053.76 and 190,544.93

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Solution

The fourth proportional to 343,511.70, 474,053.76 and 190,544.93 is: 262,956.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,511.70 : 474,053.76 = 190,544.93 : x
  2. Step 2: Convert to fraction form
    343,511.70/474,053.76 = 190,544.93/x
  3. Step 3: Cross multiply
    343,511.70x = 474,053.76 × 190,544.93
  4. Step 4: Simplify right side
    343,511.70x = 90,328,538,145.17
  5. Step 5: Solve for x
    x = 90,328,538,145.17/343,511.70
  6. Step 6: Final answer
    x = 262,956.22

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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.