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Finding the Fourth Proportional to 164,559.60, 247,357.80 and 161,449.20

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Solution

The fourth proportional to 164,559.60, 247,357.80 and 161,449.20 is: 242,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,559.60 : 247,357.80 = 161,449.20 : x
  2. Step 2: Convert to fraction form
    164,559.60/247,357.80 = 161,449.20/x
  3. Step 3: Cross multiply
    164,559.60x = 247,357.80 × 161,449.20
  4. Step 4: Simplify right side
    164,559.60x = 39,935,718,923.76
  5. Step 5: Solve for x
    x = 39,935,718,923.76/164,559.60
  6. Step 6: Final answer
    x = 242,682.40

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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.