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Finding the Fourth Proportional to 175,284.92, 242,009.98 and 103,687.94

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Solution

The fourth proportional to 175,284.92, 242,009.98 and 103,687.94 is: 143,158.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,284.92 : 242,009.98 = 103,687.94 : x
  2. Step 2: Convert to fraction form
    175,284.92/242,009.98 = 103,687.94/x
  3. Step 3: Cross multiply
    175,284.92x = 242,009.98 × 103,687.94
  4. Step 4: Simplify right side
    175,284.92x = 25,093,516,285.64
  5. Step 5: Solve for x
    x = 25,093,516,285.64/175,284.92
  6. Step 6: Final answer
    x = 143,158.44

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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.