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Finding the Fourth Proportional to 202,979.10, 304,468.65 and 62,780.70

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Solution

The fourth proportional to 202,979.10, 304,468.65 and 62,780.70 is: 94,171.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,979.10 : 304,468.65 = 62,780.70 : x
  2. Step 2: Convert to fraction form
    202,979.10/304,468.65 = 62,780.70/x
  3. Step 3: Cross multiply
    202,979.10x = 304,468.65 × 62,780.70
  4. Step 4: Simplify right side
    202,979.10x = 19,114,754,975.06
  5. Step 5: Solve for x
    x = 19,114,754,975.06/202,979.10
  6. Step 6: Final answer
    x = 94,171.05

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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.