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Finding the Fourth Proportional to 161,907.71, 242,859.52 and 73,099.11

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Solution

The fourth proportional to 161,907.71, 242,859.52 and 73,099.11 is: 109,647.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,907.71 : 242,859.52 = 73,099.11 : x
  2. Step 2: Convert to fraction form
    161,907.71/242,859.52 = 73,099.11/x
  3. Step 3: Cross multiply
    161,907.71x = 242,859.52 × 73,099.11
  4. Step 4: Simplify right side
    161,907.71x = 17,752,813,991.86
  5. Step 5: Solve for x
    x = 17,752,813,991.86/161,907.71
  6. Step 6: Final answer
    x = 109,647.74

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1.5x scale

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.