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Finding the Fourth Proportional to 356,656.28, 535,054.36 and 132,018.62

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Solution

The fourth proportional to 356,656.28, 535,054.36 and 132,018.62 is: 198,053.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,656.28 : 535,054.36 = 132,018.62 : x
  2. Step 2: Convert to fraction form
    356,656.28/535,054.36 = 132,018.62/x
  3. Step 3: Cross multiply
    356,656.28x = 535,054.36 × 132,018.62
  4. Step 4: Simplify right side
    356,656.28x = 70,637,135,226.86
  5. Step 5: Solve for x
    x = 70,637,135,226.86/356,656.28
  6. Step 6: Final answer
    x = 198,053.81

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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.