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Finding the Fourth Proportional to 343,754.83, 474,386.79 and 190,802.95

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Solution

The fourth proportional to 343,754.83, 474,386.79 and 190,802.95 is: 263,310.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,754.83 : 474,386.79 = 190,802.95 : x
  2. Step 2: Convert to fraction form
    343,754.83/474,386.79 = 190,802.95/x
  3. Step 3: Cross multiply
    343,754.83x = 474,386.79 × 190,802.95
  4. Step 4: Simplify right side
    343,754.83x = 90,514,398,973.03
  5. Step 5: Solve for x
    x = 90,514,398,973.03/343,754.83
  6. Step 6: Final answer
    x = 263,310.92

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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.