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Finding the Fourth Proportional to 117,192.71, 175,789.16 and 28,446.30

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Solution

The fourth proportional to 117,192.71, 175,789.16 and 28,446.30 is: 42,669.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,192.71 : 175,789.16 = 28,446.30 : x
  2. Step 2: Convert to fraction form
    117,192.71/175,789.16 = 28,446.30/x
  3. Step 3: Cross multiply
    117,192.71x = 175,789.16 × 28,446.30
  4. Step 4: Simplify right side
    117,192.71x = 5,000,551,039.88
  5. Step 5: Solve for x
    x = 5,000,551,039.88/117,192.71
  6. Step 6: Final answer
    x = 42,669.47

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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.