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Finding the Fourth Proportional to 178,991.59, 247,009.31 and 98,424.33

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Solution

The fourth proportional to 178,991.59, 247,009.31 and 98,424.33 is: 135,826.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,991.59 : 247,009.31 = 98,424.33 : x
  2. Step 2: Convert to fraction form
    178,991.59/247,009.31 = 98,424.33/x
  3. Step 3: Cross multiply
    178,991.59x = 247,009.31 × 98,424.33
  4. Step 4: Simplify right side
    178,991.59x = 24,311,725,840.51
  5. Step 5: Solve for x
    x = 24,311,725,840.51/178,991.59
  6. Step 6: Final answer
    x = 135,826.08

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1.5x scale

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.