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Finding the Fourth Proportional to 56,112.80, 84,266.40 and 29,868.80

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Solution

The fourth proportional to 56,112.80, 84,266.40 and 29,868.80 is: 44,854.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,112.80 : 84,266.40 = 29,868.80 : x
  2. Step 2: Convert to fraction form
    56,112.80/84,266.40 = 29,868.80/x
  3. Step 3: Cross multiply
    56,112.80x = 84,266.40 × 29,868.80
  4. Step 4: Simplify right side
    56,112.80x = 2,516,936,248.32
  5. Step 5: Solve for x
    x = 2,516,936,248.32/56,112.80
  6. Step 6: Final answer
    x = 44,854.94

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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.