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Finding the Fourth Proportional to 103,160.94, 154,785.16 and 56,359.14

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Solution

The fourth proportional to 103,160.94, 154,785.16 and 56,359.14 is: 84,562.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,160.94 : 154,785.16 = 56,359.14 : x
  2. Step 2: Convert to fraction form
    103,160.94/154,785.16 = 56,359.14/x
  3. Step 3: Cross multiply
    103,160.94x = 154,785.16 × 56,359.14
  4. Step 4: Simplify right side
    103,160.94x = 8,723,558,502.36
  5. Step 5: Solve for x
    x = 8,723,558,502.36/103,160.94
  6. Step 6: Final answer
    x = 84,562.61

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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.