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Finding the Fourth Proportional to 169,178.36, 253,789.47 and 56,810.30

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Solution

The fourth proportional to 169,178.36, 253,789.47 and 56,810.30 is: 85,222.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,178.36 : 253,789.47 = 56,810.30 : x
  2. Step 2: Convert to fraction form
    169,178.36/253,789.47 = 56,810.30/x
  3. Step 3: Cross multiply
    169,178.36x = 253,789.47 × 56,810.30
  4. Step 4: Simplify right side
    169,178.36x = 14,417,854,658.59
  5. Step 5: Solve for x
    x = 14,417,854,658.59/169,178.36
  6. Step 6: Final answer
    x = 85,222.81

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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.