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Finding the Fourth Proportional to 207,060.72, 310,597.98 and 57,288.48

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Solution

The fourth proportional to 207,060.72, 310,597.98 and 57,288.48 is: 85,934.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,060.72 : 310,597.98 = 57,288.48 : x
  2. Step 2: Convert to fraction form
    207,060.72/310,597.98 = 57,288.48/x
  3. Step 3: Cross multiply
    207,060.72x = 310,597.98 × 57,288.48
  4. Step 4: Simplify right side
    207,060.72x = 17,793,686,165.27
  5. Step 5: Solve for x
    x = 17,793,686,165.27/207,060.72
  6. Step 6: Final answer
    x = 85,934.63

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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.