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Finding the Fourth Proportional to 181,513.76, 250,511.32 and 109,918.68

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Solution

The fourth proportional to 181,513.76, 250,511.32 and 109,918.68 is: 151,701.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,513.76 : 250,511.32 = 109,918.68 : x
  2. Step 2: Convert to fraction form
    181,513.76/250,511.32 = 109,918.68/x
  3. Step 3: Cross multiply
    181,513.76x = 250,511.32 × 109,918.68
  4. Step 4: Simplify right side
    181,513.76x = 27,535,873,619.46
  5. Step 5: Solve for x
    x = 27,535,873,619.46/181,513.76
  6. Step 6: Final answer
    x = 151,701.30

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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.