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Finding the Fourth Proportional to 181,221.66, 250,117.92 and 135,510.66

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Solution

The fourth proportional to 181,221.66, 250,117.92 and 135,510.66 is: 187,028.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,221.66 : 250,117.92 = 135,510.66 : x
  2. Step 2: Convert to fraction form
    181,221.66/250,117.92 = 135,510.66/x
  3. Step 3: Cross multiply
    181,221.66x = 250,117.92 × 135,510.66
  4. Step 4: Simplify right side
    181,221.66x = 33,893,644,417.03
  5. Step 5: Solve for x
    x = 33,893,644,417.03/181,221.66
  6. Step 6: Final answer
    x = 187,028.66

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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.