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Finding the Fourth Proportional to 104,472.33, 144,174.74 and 56,728.59

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Solution

The fourth proportional to 104,472.33, 144,174.74 and 56,728.59 is: 78,287.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,472.33 : 144,174.74 = 56,728.59 : x
  2. Step 2: Convert to fraction form
    104,472.33/144,174.74 = 56,728.59/x
  3. Step 3: Cross multiply
    104,472.33x = 144,174.74 × 56,728.59
  4. Step 4: Simplify right side
    104,472.33x = 8,178,829,430.17
  5. Step 5: Solve for x
    x = 8,178,829,430.17/104,472.33
  6. Step 6: Final answer
    x = 78,287.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.