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Finding the Fourth Proportional to 163,586.72, 245,380.23 and 51,275.72

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Solution

The fourth proportional to 163,586.72, 245,380.23 and 51,275.72 is: 76,913.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,586.72 : 245,380.23 = 51,275.72 : x
  2. Step 2: Convert to fraction form
    163,586.72/245,380.23 = 51,275.72/x
  3. Step 3: Cross multiply
    163,586.72x = 245,380.23 × 51,275.72
  4. Step 4: Simplify right side
    163,586.72x = 12,582,047,967.02
  5. Step 5: Solve for x
    x = 12,582,047,967.02/163,586.72
  6. Step 6: Final answer
    x = 76,913.63

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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.