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Finding the Fourth Proportional to 163,562.31, 245,343.60 and 51,243.45

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Solution

The fourth proportional to 163,562.31, 245,343.60 and 51,243.45 is: 76,865.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,562.31 : 245,343.60 = 51,243.45 : x
  2. Step 2: Convert to fraction form
    163,562.31/245,343.60 = 51,243.45/x
  3. Step 3: Cross multiply
    163,562.31x = 245,343.60 × 51,243.45
  4. Step 4: Simplify right side
    163,562.31x = 12,572,252,499.42
  5. Step 5: Solve for x
    x = 12,572,252,499.42/163,562.31
  6. Step 6: Final answer
    x = 76,865.22

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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.