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Finding the Fourth Proportional to 166,665.40, 249,973.80 and 48,324.40

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Solution

The fourth proportional to 166,665.40, 249,973.80 and 48,324.40 is: 72,479.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,665.40 : 249,973.80 = 48,324.40 : x
  2. Step 2: Convert to fraction form
    166,665.40/249,973.80 = 48,324.40/x
  3. Step 3: Cross multiply
    166,665.40x = 249,973.80 × 48,324.40
  4. Step 4: Simplify right side
    166,665.40x = 12,079,833,900.72
  5. Step 5: Solve for x
    x = 12,079,833,900.72/166,665.40
  6. Step 6: Final answer
    x = 72,479.55

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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.