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Finding the Fourth Proportional to 150,790.48, 207,908 and 130,335.68

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Solution

The fourth proportional to 150,790.48, 207,908 and 130,335.68 is: 179,705.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,790.48 : 207,908 = 130,335.68 : x
  2. Step 2: Convert to fraction form
    150,790.48/207,908 = 130,335.68/x
  3. Step 3: Cross multiply
    150,790.48x = 207,908 × 130,335.68
  4. Step 4: Simplify right side
    150,790.48x = 27,097,830,557.44
  5. Step 5: Solve for x
    x = 27,097,830,557.44/150,790.48
  6. Step 6: Final answer
    x = 179,705.18

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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.