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Finding the Fourth Proportional to 163,953.64, 245,939.27 and 51,642.65

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Solution

The fourth proportional to 163,953.64, 245,939.27 and 51,642.65 is: 77,466.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,953.64 : 245,939.27 = 51,642.65 : x
  2. Step 2: Convert to fraction form
    163,953.64/245,939.27 = 51,642.65/x
  3. Step 3: Cross multiply
    163,953.64x = 245,939.27 × 51,642.65
  4. Step 4: Simplify right side
    163,953.64x = 12,700,954,905.58
  5. Step 5: Solve for x
    x = 12,700,954,905.58/163,953.64
  6. Step 6: Final answer
    x = 77,466.75

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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.