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Finding the Fourth Proportional to 56,798.79, 85,133.61 and 34,563.21

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Solution

The fourth proportional to 56,798.79, 85,133.61 and 34,563.21 is: 51,805.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,798.79 : 85,133.61 = 34,563.21 : x
  2. Step 2: Convert to fraction form
    56,798.79/85,133.61 = 34,563.21/x
  3. Step 3: Cross multiply
    56,798.79x = 85,133.61 × 34,563.21
  4. Step 4: Simplify right side
    56,798.79x = 2,942,490,840.49
  5. Step 5: Solve for x
    x = 2,942,490,840.49/56,798.79
  6. Step 6: Final answer
    x = 51,805.52

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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.