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Finding the Fourth Proportional to 72,068.94, 108,117.99 and 25,354.62

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Solution

The fourth proportional to 72,068.94, 108,117.99 and 25,354.62 is: 38,037.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,068.94 : 108,117.99 = 25,354.62 : x
  2. Step 2: Convert to fraction form
    72,068.94/108,117.99 = 25,354.62/x
  3. Step 3: Cross multiply
    72,068.94x = 108,117.99 × 25,354.62
  4. Step 4: Simplify right side
    72,068.94x = 2,741,290,551.61
  5. Step 5: Solve for x
    x = 2,741,290,551.61/72,068.94
  6. Step 6: Final answer
    x = 38,037.06

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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.