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Finding the Fourth Proportional to 53,894.73, 74,354.61 and 53,811.66

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Solution

The fourth proportional to 53,894.73, 74,354.61 and 53,811.66 is: 74,240.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,894.73 : 74,354.61 = 53,811.66 : x
  2. Step 2: Convert to fraction form
    53,894.73/74,354.61 = 53,811.66/x
  3. Step 3: Cross multiply
    53,894.73x = 74,354.61 × 53,811.66
  4. Step 4: Simplify right side
    53,894.73x = 4,001,144,992.75
  5. Step 5: Solve for x
    x = 4,001,144,992.75/53,894.73
  6. Step 6: Final answer
    x = 74,240.00

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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.