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Finding the Fourth Proportional to 207,663.04, 311,494.56 and 57,897.28

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Solution

The fourth proportional to 207,663.04, 311,494.56 and 57,897.28 is: 86,845.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,663.04 : 311,494.56 = 57,897.28 : x
  2. Step 2: Convert to fraction form
    207,663.04/311,494.56 = 57,897.28/x
  3. Step 3: Cross multiply
    207,663.04x = 311,494.56 × 57,897.28
  4. Step 4: Simplify right side
    207,663.04x = 18,034,687,758.80
  5. Step 5: Solve for x
    x = 18,034,687,758.80/207,663.04
  6. Step 6: Final answer
    x = 86,845.92

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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.