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Finding the Fourth Proportional to 305,116.80, 457,718.40 and 94,732.80

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Solution

The fourth proportional to 305,116.80, 457,718.40 and 94,732.80 is: 142,112.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,116.80 : 457,718.40 = 94,732.80 : x
  2. Step 2: Convert to fraction form
    305,116.80/457,718.40 = 94,732.80/x
  3. Step 3: Cross multiply
    305,116.80x = 457,718.40 × 94,732.80
  4. Step 4: Simplify right side
    305,116.80x = 43,360,945,643.52
  5. Step 5: Solve for x
    x = 43,360,945,643.52/305,116.80
  6. Step 6: Final answer
    x = 142,112.61

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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.