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Finding the Fourth Proportional to 242,072.80, 362,979.60 and 101,672.80

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Solution

The fourth proportional to 242,072.80, 362,979.60 and 101,672.80 is: 152,454.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,072.80 : 362,979.60 = 101,672.80 : x
  2. Step 2: Convert to fraction form
    242,072.80/362,979.60 = 101,672.80/x
  3. Step 3: Cross multiply
    242,072.80x = 362,979.60 × 101,672.80
  4. Step 4: Simplify right side
    242,072.80x = 36,905,152,274.88
  5. Step 5: Solve for x
    x = 36,905,152,274.88/242,072.80
  6. Step 6: Final answer
    x = 152,454.77

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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.