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Finding the Fourth Proportional to 242,690.72, 364,200.08 and 84,920.52

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Solution

The fourth proportional to 242,690.72, 364,200.08 and 84,920.52 is: 127,438.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,690.72 : 364,200.08 = 84,920.52 : x
  2. Step 2: Convert to fraction form
    242,690.72/364,200.08 = 84,920.52/x
  3. Step 3: Cross multiply
    242,690.72x = 364,200.08 × 84,920.52
  4. Step 4: Simplify right side
    242,690.72x = 30,928,060,177.64
  5. Step 5: Solve for x
    x = 30,928,060,177.64/242,690.72
  6. Step 6: Final answer
    x = 127,438.17

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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.