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Finding the Fourth Proportional to 268,582.65, 402,290.78 and 163,606.65

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Solution

The fourth proportional to 268,582.65, 402,290.78 and 163,606.65 is: 245,054.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,582.65 : 402,290.78 = 163,606.65 : x
  2. Step 2: Convert to fraction form
    268,582.65/402,290.78 = 163,606.65/x
  3. Step 3: Cross multiply
    268,582.65x = 402,290.78 × 163,606.65
  4. Step 4: Simplify right side
    268,582.65x = 65,817,446,023.65
  5. Step 5: Solve for x
    x = 65,817,446,023.65/268,582.65
  6. Step 6: Final answer
    x = 245,054.72

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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.