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Finding the Fourth Proportional to 72,923.01, 109,384.54 and 17,519.01

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Solution

The fourth proportional to 72,923.01, 109,384.54 and 17,519.01 is: 26,278.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,923.01 : 109,384.54 = 17,519.01 : x
  2. Step 2: Convert to fraction form
    72,923.01/109,384.54 = 17,519.01/x
  3. Step 3: Cross multiply
    72,923.01x = 109,384.54 × 17,519.01
  4. Step 4: Simplify right side
    72,923.01x = 1,916,308,850.11
  5. Step 5: Solve for x
    x = 1,916,308,850.11/72,923.01
  6. Step 6: Final answer
    x = 26,278.52

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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.