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Finding the Fourth Proportional to 56,370.88, 84,530.40 and 30,068.80

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Solution

The fourth proportional to 56,370.88, 84,530.40 and 30,068.80 is: 45,089.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,370.88 : 84,530.40 = 30,068.80 : x
  2. Step 2: Convert to fraction form
    56,370.88/84,530.40 = 30,068.80/x
  3. Step 3: Cross multiply
    56,370.88x = 84,530.40 × 30,068.80
  4. Step 4: Simplify right side
    56,370.88x = 2,541,727,691.52
  5. Step 5: Solve for x
    x = 2,541,727,691.52/56,370.88
  6. Step 6: Final answer
    x = 45,089.37

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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.