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Finding the Fourth Proportional to 306,991.20, 460,476.39 and 93,750.51

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Solution

The fourth proportional to 306,991.20, 460,476.39 and 93,750.51 is: 140,622.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,991.20 : 460,476.39 = 93,750.51 : x
  2. Step 2: Convert to fraction form
    306,991.20/460,476.39 = 93,750.51/x
  3. Step 3: Cross multiply
    306,991.20x = 460,476.39 × 93,750.51
  4. Step 4: Simplify right side
    306,991.20x = 43,169,896,405.46
  5. Step 5: Solve for x
    x = 43,169,896,405.46/306,991.20
  6. Step 6: Final answer
    x = 140,622.59

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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.