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Finding the Fourth Proportional to 166,148.70, 249,247.35 and 53,809.80

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Solution

The fourth proportional to 166,148.70, 249,247.35 and 53,809.80 is: 80,722.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,148.70 : 249,247.35 = 53,809.80 : x
  2. Step 2: Convert to fraction form
    166,148.70/249,247.35 = 53,809.80/x
  3. Step 3: Cross multiply
    166,148.70x = 249,247.35 × 53,809.80
  4. Step 4: Simplify right side
    166,148.70x = 13,411,950,054.03
  5. Step 5: Solve for x
    x = 13,411,950,054.03/166,148.70
  6. Step 6: Final answer
    x = 80,722.57

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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.