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Finding the Fourth Proportional to 700,999.71, 1,051,499.13 and 168,520.56

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Solution

The fourth proportional to 700,999.71, 1,051,499.13 and 168,520.56 is: 252,780.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,999.71 : 1,051,499.13 = 168,520.56 : x
  2. Step 2: Convert to fraction form
    700,999.71/1,051,499.13 = 168,520.56/x
  3. Step 3: Cross multiply
    700,999.71x = 1,051,499.13 × 168,520.56
  4. Step 4: Simplify right side
    700,999.71x = 177,199,222,227.11
  5. Step 5: Solve for x
    x = 177,199,222,227.11/700,999.71
  6. Step 6: Final answer
    x = 252,780.74

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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.