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Finding the Fourth Proportional to 191,940.30, 287,910.45 and 176,777.10

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Solution

The fourth proportional to 191,940.30, 287,910.45 and 176,777.10 is: 265,165.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,940.30 : 287,910.45 = 176,777.10 : x
  2. Step 2: Convert to fraction form
    191,940.30/287,910.45 = 176,777.10/x
  3. Step 3: Cross multiply
    191,940.30x = 287,910.45 × 176,777.10
  4. Step 4: Simplify right side
    191,940.30x = 50,895,974,410.70
  5. Step 5: Solve for x
    x = 50,895,974,410.70/191,940.30
  6. Step 6: Final answer
    x = 265,165.65

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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.