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Finding the Fourth Proportional to 303,574.71, 455,278.95 and 114,020.43

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Solution

The fourth proportional to 303,574.71, 455,278.95 and 114,020.43 is: 170,999.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,574.71 : 455,278.95 = 114,020.43 : x
  2. Step 2: Convert to fraction form
    303,574.71/455,278.95 = 114,020.43/x
  3. Step 3: Cross multiply
    303,574.71x = 455,278.95 × 114,020.43
  4. Step 4: Simplify right side
    303,574.71x = 51,911,101,648.95
  5. Step 5: Solve for x
    x = 51,911,101,648.95/303,574.71
  6. Step 6: Final answer
    x = 170,999.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.