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Finding the Fourth Proportional to 191,997.80, 287,996.70 and 174,501.80

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Solution

The fourth proportional to 191,997.80, 287,996.70 and 174,501.80 is: 261,752.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,997.80 : 287,996.70 = 174,501.80 : x
  2. Step 2: Convert to fraction form
    191,997.80/287,996.70 = 174,501.80/x
  3. Step 3: Cross multiply
    191,997.80x = 287,996.70 × 174,501.80
  4. Step 4: Simplify right side
    191,997.80x = 50,255,942,544.06
  5. Step 5: Solve for x
    x = 50,255,942,544.06/191,997.80
  6. Step 6: Final answer
    x = 261,752.70

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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.