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Finding the Fourth Proportional to 161,956.05, 242,934.08 and 83,019.93

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Solution

The fourth proportional to 161,956.05, 242,934.08 and 83,019.93 is: 124,529.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,956.05 : 242,934.08 = 83,019.93 : x
  2. Step 2: Convert to fraction form
    161,956.05/242,934.08 = 83,019.93/x
  3. Step 3: Cross multiply
    161,956.05x = 242,934.08 × 83,019.93
  4. Step 4: Simplify right side
    161,956.05x = 20,168,370,316.21
  5. Step 5: Solve for x
    x = 20,168,370,316.21/161,956.05
  6. Step 6: Final answer
    x = 124,529.90

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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.