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Finding the Fourth Proportional to 163,631.70, 245,447.55 and 163,631.70

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Solution

The fourth proportional to 163,631.70, 245,447.55 and 163,631.70 is: 245,447.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,631.70 : 245,447.55 = 163,631.70 : x
  2. Step 2: Convert to fraction form
    163,631.70/245,447.55 = 163,631.70/x
  3. Step 3: Cross multiply
    163,631.70x = 245,447.55 × 163,631.70
  4. Step 4: Simplify right side
    163,631.70x = 40,162,999,867.34
  5. Step 5: Solve for x
    x = 40,162,999,867.34/163,631.70
  6. Step 6: Final answer
    x = 245,447.55

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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.