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Finding the Fourth Proportional to 145,010.52, 217,454.22 and 56,247.48

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Solution

The fourth proportional to 145,010.52, 217,454.22 and 56,247.48 is: 84,347.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,010.52 : 217,454.22 = 56,247.48 : x
  2. Step 2: Convert to fraction form
    145,010.52/217,454.22 = 56,247.48/x
  3. Step 3: Cross multiply
    145,010.52x = 217,454.22 × 56,247.48
  4. Step 4: Simplify right side
    145,010.52x = 12,231,251,890.37
  5. Step 5: Solve for x
    x = 12,231,251,890.37/145,010.52
  6. Step 6: Final answer
    x = 84,347.34

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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.