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Finding the Fourth Proportional to 161,706.52, 242,625.66 and 72,898.12

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Solution

The fourth proportional to 161,706.52, 242,625.66 and 72,898.12 is: 109,376.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,706.52 : 242,625.66 = 72,898.12 : x
  2. Step 2: Convert to fraction form
    161,706.52/242,625.66 = 72,898.12/x
  3. Step 3: Cross multiply
    161,706.52x = 242,625.66 × 72,898.12
  4. Step 4: Simplify right side
    161,706.52x = 17,686,954,477.76
  5. Step 5: Solve for x
    x = 17,686,954,477.76/161,706.52
  6. Step 6: Final answer
    x = 109,376.88

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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.