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Finding the Fourth Proportional to 74,495.40, 102,786.48 and 46,187.52

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Solution

The fourth proportional to 74,495.40, 102,786.48 and 46,187.52 is: 63,728.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,495.40 : 102,786.48 = 46,187.52 : x
  2. Step 2: Convert to fraction form
    74,495.40/102,786.48 = 46,187.52/x
  3. Step 3: Cross multiply
    74,495.40x = 102,786.48 × 46,187.52
  4. Step 4: Simplify right side
    74,495.40x = 4,747,452,600.73
  5. Step 5: Solve for x
    x = 4,747,452,600.73/74,495.40
  6. Step 6: Final answer
    x = 63,728.13

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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.