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Finding the Fourth Proportional to 700,906.65, 1,051,359.87 and 168,427.68

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Solution

The fourth proportional to 700,906.65, 1,051,359.87 and 168,427.68 is: 252,641.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,906.65 : 1,051,359.87 = 168,427.68 : x
  2. Step 2: Convert to fraction form
    700,906.65/1,051,359.87 = 168,427.68/x
  3. Step 3: Cross multiply
    700,906.65x = 1,051,359.87 × 168,427.68
  4. Step 4: Simplify right side
    700,906.65x = 177,078,105,535.46
  5. Step 5: Solve for x
    x = 177,078,105,535.46/700,906.65
  6. Step 6: Final answer
    x = 252,641.50

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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.