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Finding the Fourth Proportional to 203,275.47, 304,961.66 and 70,156.89

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Solution

The fourth proportional to 203,275.47, 304,961.66 and 70,156.89 is: 105,252.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,275.47 : 304,961.66 = 70,156.89 : x
  2. Step 2: Convert to fraction form
    203,275.47/304,961.66 = 70,156.89/x
  3. Step 3: Cross multiply
    203,275.47x = 304,961.66 × 70,156.89
  4. Step 4: Simplify right side
    203,275.47x = 21,395,161,284.05
  5. Step 5: Solve for x
    x = 21,395,161,284.05/203,275.47
  6. Step 6: Final answer
    x = 105,252.06

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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.