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Finding the Fourth Proportional to 73,068.57, 109,602.95 and 17,664.57

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Solution

The fourth proportional to 73,068.57, 109,602.95 and 17,664.57 is: 26,496.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,068.57 : 109,602.95 = 17,664.57 : x
  2. Step 2: Convert to fraction form
    73,068.57/109,602.95 = 17,664.57/x
  3. Step 3: Cross multiply
    73,068.57x = 109,602.95 × 17,664.57
  4. Step 4: Simplify right side
    73,068.57x = 1,936,088,894.16
  5. Step 5: Solve for x
    x = 1,936,088,894.16/73,068.57
  6. Step 6: Final answer
    x = 26,496.88

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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.