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Finding the Fourth Proportional to 72,654.17, 108,809.03 and 46,278.95

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Solution

The fourth proportional to 72,654.17, 108,809.03 and 46,278.95 is: 69,308.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,654.17 : 108,809.03 = 46,278.95 : x
  2. Step 2: Convert to fraction form
    72,654.17/108,809.03 = 46,278.95/x
  3. Step 3: Cross multiply
    72,654.17x = 108,809.03 × 46,278.95
  4. Step 4: Simplify right side
    72,654.17x = 5,035,567,658.92
  5. Step 5: Solve for x
    x = 5,035,567,658.92/72,654.17
  6. Step 6: Final answer
    x = 69,308.72

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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.